| Date | Duration | Home | Away | Venue | Comp | Floodlit | |
| Tuesday, March 27, 2012 | 4 days | MCC | Lancashire | Abu Dhabi | Other | F | |
| Saturday, March 31, 2012 | 3 days | Cambridge MCCU | Essex | Fenner's | UNI | ||
| Saturday, March 31, 2012 | 3 days | Durham MCCU | Middlesex | Durham | UNI | ||
| Saturday, March 31, 2012 | 3 days | Oxford MCCU | Glamorgan | The Parks | UNI | ||
| Saturday, March 31, 2012 | 3 days | Somerset | Cardiff MCCU | Taunton | UNI | ||
| Saturday, March 31, 2012 | 3 days | Surrey | Leeds/Brad MCCU | Kia Oval | UNI | ||
| Sunday, April 01, 2012 | 3 days | Nottinghamshire | Loughboro MCCU | Trent Bridge | UNI | ||
| Thursday, April 05, 2012 | 4 days | Leicestershire | Glamorgan | Grace Road | LV= County Championship 2 | ||
| Thursday, April 05, 2012 | 4 days | Essex | Gloucestershire | Chelmsford | LV= County Championship 2 | ||
| Thursday, April 05, 2012 | 4 days | Surrey | Sussex | Kia Oval | LV= County Championship 1 | ||
| Thursday, April 05, 2012 | 4 days | Somerset | Middlesex | Taunton | LV= County Championship 1 | ||
| Thursday, April 05, 2012 | 4 days | Derbyshire | Northamptonshire | Derby | LV= County Championship 2 | ||
| Thursday, April 05, 2012 | 4 days | Nottinghamshire | Worcestershire | Trent Bridge | LV= County Championship 1 | ||
| Thursday, April 05, 2012 | 4 days | Yorkshire | Kent | Headingley Carnegie | LV= County Championship 2 | ||
| Friday, April 06, 2012 | 3 days | Warwickshire | Cardiff MCCU | Edgbaston | UNI | ||
| Friday, April 06, 2012 | 3 days | Hampshire | Loughboro MCCU | Rose Bowl | UNI | ||
| Friday, April 06, 2012 | 3 days | Durham | Durham MCCU | Emirates Durham ICG | UNI | ||
| Friday, April 06, 2012 | 3 days | Cambridge MCCU | Lancashire | Fenner's | UNI | ||
| Thursday, April 12, 2012 | 4 days | Middlesex | Surrey | Lord's | LV= County Championship 1 | ||
| Thursday, April 12, 2012 | 4 days | Hampshire | Gloucestershire | Rose Bowl | LV= County Championship 2 | ||
| Thursday, April 12, 2012 | 4 days | Northamptonshire | Kent | Northampton | LV= County Championship 2 | ||
| Thursday, April 12, 2012 | 4 days | Warwickshire | Somerset | Edgbaston | LV= County Championship 1 | ||
| Thursday, April 12, 2012 | 4 days | Durham | Nottinghamshire | Emirates Durham ICG | LV= County Championship 1 | ||
| Thursday, April 12, 2012 | 4 days | Lancashire | Sussex | Liverpool | LV= County Championship 1 | ||
| Thursday, April 12, 2012 | 4 days | Glamorgan | Derbyshire | SWALEC Stadium | LV= County Championship 2 | ||
| Friday, April 13, 2012 | 3 days | Yorkshire | Leeds/Brad MCCU | Headingley Carnegie | UNI | ||
| Friday, April 13, 2012 | 3 days | Loughboro MCCU | Leicestershire | Loughborough | UNI | ||
| Friday, April 13, 2012 | 3 days | Oxford MCCU | Worcestershire | The Parks | UNI | ||
| Thursday, April 19, 2012 | 4 days | Surrey | Worcestershire | Kia Oval | LV= County Championship 1 | ||
| Thursday, April 19, 2012 | 4 days | Nottinghamshire | Somerset | Trent Bridge | LV= County Championship 1 | ||
| Thursday, April 19, 2012 | 4 days | Middlesex | Durham | Lord's | LV= County Championship 1 | ||
| Thursday, April 19, 2012 | 4 days | Yorkshire | Essex | Headingley Carnegie | LV= County Championship 2 | ||
| Thursday, April 19, 2012 | 4 days | Kent | Gloucestershire | Canterbury | LV= County Championship 2 | ||
| Thursday, April 19, 2012 | 4 days | Lancashire | Warwickshire | Liverpool | LV= County Championship 1 | ||
| Thursday, April 19, 2012 | 4 days | Glamorgan | Hampshire | SWALEC Stadium | LV= County Championship 2 | ||
| Thursday, April 19, 2012 | 4 days | Derbyshire | Leicestershire | Derby | LV= County Championship 2 | ||
| Friday, April 20, 2012 | 3 days | Durham MCCU | Northamptonshire | Durham Racecourse | UNI | ||
| Thursday, April 26, 2012 | 4 days | Essex | Northamptonshire | Chelmsford | LV= County Championship 2 | ||
| Thursday, April 26, 2012 | 4 days | Somerset | Lancashire | Taunton | LV= County Championship 1 | ||
| Thursday, April 26, 2012 | 4 days | Kent | Yorkshire | Canterbury | LV= County Championship 2 | ||
| Thursday, April 26, 2012 | 4 days | Hampshire | Leicestershire | Rose Bowl | LV= County Championship 2 | ||
| Thursday, April 26, 2012 | 4 days | Worcestershire | Nottinghamshire | New Road | LV= County Championship 1 | ||
| Thursday, April 26, 2012 | 4 days | Sussex | Warwickshire | Hove | LV= County Championship 1 | ||
| Thursday, April 26, 2012 | 4 days | Surrey | Durham | Kia Oval | LV= County Championship 1 | ||
| Thursday, April 26, 2012 | 4 days | Gloucestershire | Glamorgan | Bristol | LV= County Championship 2 | ||
| Friday, April 27, 2012 | 3 days | Derbyshire | Cardiff MCCU | Derby | UNI | ||
| Tuesday, May 01, 2012 | 3 days | Leeds/Brad MCCU | Sussex | Weetwood | UNI | ||
| Wednesday, May 02, 2012 | 4 days | Yorkshire | Leicestershire | Headingley Carnegie | LV= County Championship 2 | ||
| Wednesday, May 02, 2012 | 4 days | Derbyshire | Gloucestershire | Derby | LV= County Championship 2 | ||
| Wednesday, May 02, 2012 | 4 days | Glamorgan | Essex | SWALEC Stadium | LV= County Championship 2 | ||
| Wednesday, May 02, 2012 | 4 days | Northamptonshire | Hampshire | Northampton | LV= County Championship 2 | ||
| Wednesday, May 02, 2012 | 3 days | Oxford MCCU | Kent | The Parks | UNI | ||
| Wednesday, May 02, 2012 | 4 days | Warwickshire | Durham | Edgbaston | LV= County Championship 1 | ||
| Wednesday, May 02, 2012 | 4 days | Lancashire | Nottinghamshire | Old Trafford | LV= County Championship 1 | ||
| Thursday, May 03, 2012 | 4 days | Middlesex | Worcestershire | Lord's | LV= County Championship 1 | ||
| Friday, May 04, 2012 | 1 day | Surrey | Somerset | Kia Oval | Clydesdale Bank 40 | F | |
| Saturday, May 05, 2012 | 3 days | Sussex | West Indies | Hove | Tour Match 3 | ||
| Sunday, May 06, 2012 | 1 day | Gloucestershire | Netherlands | Bristol | Clydesdale Bank 40 | ||
| Sunday, May 06, 2012 | 1 day | Lancashire | Leicestershire | Old Trafford | Clydesdale Bank 40 | ||
| Sunday, May 06, 2012 | 1 day | Warwickshire | Northamptonshire | Edgbaston | Clydesdale Bank 40 | ||
| Sunday, May 06, 2012 | 1 day | Unicorns | Derbyshire | tbc | Clydesdale Bank 40 | ||
| Sunday, May 06, 2012 | 1 day | Scotland | Surrey | tbc | Clydesdale Bank 40 | ||
| Sunday, May 06, 2012 | 1 day | Yorkshire | Kent | Headingley Carnegie | Clydesdale Bank 40 | ||
| Monday, May 07, 2012 | 1 day | Worcestershire | Netherlands | New Road | Clydesdale Bank 40 | ||
| Monday, May 07, 2012 | 1 day | Leicestershire | Essex | Grace Road | Clydesdale Bank 40 | ||
| Monday, May 07, 2012 | 1 day | Hampshire | Glamorgan | Rose Bowl | Clydesdale Bank 40 | ||
| Monday, May 07, 2012 | 1 day | Scotland | Nottinghamshire | tbc | Clydesdale Bank 40 | ||
| Monday, May 07, 2012 | 1 day | Northamptonshire | Unicorns | Northampton | Clydesdale Bank 40 | ||
| Monday, May 07, 2012 | 1 day | Middlesex | Gloucestershire | Lord's | Clydesdale Bank 40 | ||
| Wednesday, May 09, 2012 | 4 days | Durham | Somerset | Emirates Durham ICG | LV= County Championship 1 | ||
| Wednesday, May 09, 2012 | 4 days | Nottinghamshire | Middlesex | Trent Bridge | LV= County Championship 1 | ||
| Wednesday, May 09, 2012 | 4 days | Sussex | Lancashire | Hove | LV= County Championship 1 | ||
| Wednesday, May 09, 2012 | 4 days | Worcestershire | Surrey | New Road | LV= County Championship 1 | ||
| Wednesday, May 09, 2012 | 4 days | Essex | Kent | Chelmsford | LV= County Championship 2 | ||
| Wednesday, May 09, 2012 | 4 days | Gloucestershire | Yorkshire | Bristol | LV= County Championship 2 | ||
| Wednesday, May 09, 2012 | 4 days | Hampshire | Derbyshire | Rose Bowl | LV= County Championship 2 | ||
| Wednesday, May 09, 2012 | 4 days | Leicestershire | Northamptonshire | Grace Road | LV= County Championship 2 | ||
| Thursday, May 10, 2012 | 4 days | England Lions | West Indies | Northampton | Tour Match 4 | ||
| Sunday, May 13, 2012 | 1 day | Warwickshire | Derbyshire | Edgbaston | Clydesdale Bank 40 | ||
| Sunday, May 13, 2012 | 1 day | Durham | Somerset | Emirates Durham ICG | Clydesdale Bank 40 | ||
| Sunday, May 13, 2012 | 1 day | Essex | Worcestershire | Chelmsford | Clydesdale Bank 40 | ||
| Sunday, May 13, 2012 | 1 day | Gloucestershire | Leicestershire | Bristol | Clydesdale Bank 40 | ||
| Sunday, May 13, 2012 | 1 day | Sussex | Unicorns | Hove | Clydesdale Bank 40 | ||
| Sunday, May 13, 2012 | 1 day | Scotland | Glamorgan | tbc | Clydesdale Bank 40 | ||
| Monday, May 14, 2012 | 1 day | Netherlands | Middlesex | tbc | Clydesdale Bank 40 | ||
| Wednesday, May 16, 2012 | 4 days | Surrey | Somerset | Kia Oval | LV= County Championship 1 | ||
| Wednesday, May 16, 2012 | 4 days | Warwickshire | Lancashire | Edgbaston | LV= County Championship 1 | ||
| Wednesday, May 16, 2012 | 4 days | Yorkshire | Hampshire | TBC | LV= County Championship 2 | ||
| Wednesday, May 16, 2012 | 4 days | Worcestershire | Sussex | New Road | LV= County Championship 1 | ||
| Wednesday, May 16, 2012 | 4 days | Derbyshire | Glamorgan | Derby | LV= County Championship 2 | ||
| Wednesday, May 16, 2012 | 4 days | Kent | Northamptonshire | Canterbury | LV= County Championship 2 | ||
| Wednesday, May 16, 2012 | 4 days | Leicestershire | Essex | Grace Road | LV= County Championship 2 | ||
| Thursday, May 17, 2012 | 5 days | England | West Indies | Lord's | Investec Test Match | ||
| Friday, May 18, 2012 | 3 days | Cambridge MCCU | Gloucestershire | Fenner's | UNI | ||
| Sunday, May 20, 2012 | 1 day | Surrey | Durham | Kia Oval | Clydesdale Bank 40 | ||
| Sunday, May 20, 2012 | 1 day | Scotland | Hampshire | tbc | Clydesdale Bank 40 | ||
| Sunday, May 20, 2012 | 1 day | Lancashire | Essex | Old Trafford | Clydesdale Bank 40 | ||
| Sunday, May 20, 2012 | 1 day | Kent | Unicorns | Canterbury | Clydesdale Bank 40 | ||
| Sunday, May 20, 2012 | 1 day | Yorkshire | Derbyshire | TBC | Clydesdale Bank 40 | ||
| Sunday, May 20, 2012 | 1 day | Leicestershire | Middlesex | Grace Road | Clydesdale Bank 40 | ||
| Tuesday, May 22, 2012 | 4 days | Somerset | Durham | Taunton | LV= County Championship 1 | ||
| Wednesday, May 23, 2012 | 4 days | Essex | Derbyshire | Chelmsford | LV= County Championship 2 | ||
| Wednesday, May 23, 2012 | 4 days | Northamptonshire | Gloucestershire | Northampton | LV= County Championship 2 | ||
| Wednesday, May 23, 2012 | 4 days | Surrey | Warwickshire | Kia Oval | LV= County Championship 1 | ||
| Wednesday, May 23, 2012 | 4 days | Hampshire | Glamorgan | Rose Bowl | LV= County Championship 2 | ||
| Wednesday, May 23, 2012 | 4 days | Lancashire | Middlesex | Liverpool | LV= County Championship 1 | ||
| Wednesday, May 23, 2012 | 4 days | Kent | Leicestershire | Canterbury | LV= County Championship 2 | ||
| Thursday, May 24, 2012 | 1 day | Sussex | Yorkshire | Hove | Clydesdale Bank 40 | F | |
| Friday, May 25, 2012 | 4 days | Sussex | Nottinghamshire | Hove | LV= County Championship 1 | ||
| Friday, May 25, 2012 | 5 days | England | West Indies | Trent Bridge | Investec Test Match | ||
| Sunday, May 27, 2012 | 1 day | Durham | Scotland | Emirates Durham ICG | Clydesdale Bank 40 | ||
| Sunday, May 27, 2012 | 1 day | Northamptonshire | Warwickshire | Northampton | Clydesdale Bank 40 | ||
| Sunday, May 27, 2012 | 1 day | Somerset | Hampshire | Taunton | Clydesdale Bank 40 | ||
| Sunday, May 27, 2012 | 1 day | Unicorns | Yorkshire | tbc | Clydesdale Bank 40 | ||
| Sunday, May 27, 2012 | 1 day | Worcestershire | Middlesex | New Road | Clydesdale Bank 40 | ||
| Monday, May 28, 2012 | 1 day | Netherlands | Lancashire | tbc | Clydesdale Bank 40 | ||
| Tuesday, May 29, 2012 | 1 day | Netherlands | Essex | tbc | Clydesdale Bank 40 | ||
| Tuesday, May 29, 2012 | 4 days | Glamorgan | Leicestershire | SWALEC Stadium | LV= County Championship 2 | ||
| Wednesday, May 30, 2012 | 4 days | Gloucestershire | Derbyshire | Bristol | LV= County Championship 2 | ||
| Wednesday, May 30, 2012 | 4 days | Yorkshire | Northamptonshire | Headingley Carnegie | LV= County Championship 2 | ||
| Wednesday, May 30, 2012 | 4 days | Worcestershire | Somerset | New Road | LV= County Championship 1 | ||
| Wednesday, May 30, 2012 | 4 days | Durham | Lancashire | Emirates Durham ICG | LV= County Championship 1 | ||
| Wednesday, May 30, 2012 | 4 days | Middlesex | Sussex | Lord's | LV= County Championship 1 | ||
| Thursday, May 31, 2012 | 1 day | Hampshire | Nottinghamshire | Rose Bowl | Clydesdale Bank 40 | F | |
| Friday, June 01, 2012 | 1 day | Kent | Warwickshire | Canterbury | Clydesdale Bank 40 | F | |
| Saturday, June 02, 2012 | 1 day | Glamorgan | Surrey | SWALEC Stadium | Clydesdale Bank 40 | ||
| Saturday, June 02, 2012 | 2 days | Leicestershire | West Indies | Grace Road | Tour Match 2 | ||
| Sunday, June 03, 2012 | 1 day | Unicorns | Sussex | tbc | Clydesdale Bank 40 | ||
| Sunday, June 03, 2012 | 1 day | Surrey | Hampshire | Kia Oval | Clydesdale Bank 40 | ||
| Sunday, June 03, 2012 | 1 day | Durham | Nottinghamshire | Emirates Durham ICG | Clydesdale Bank 40 | ||
| Sunday, June 03, 2012 | 1 day | Middlesex | Netherlands | Lord's | Clydesdale Bank 40 | ||
| Sunday, June 03, 2012 | 1 day | Yorkshire | Northamptonshire | Headingley Carnegie | Clydesdale Bank 40 | ||
| Monday, June 04, 2012 | 1 day | Derbyshire | Warwickshire | Derby | Clydesdale Bank 40 | ||
| Monday, June 04, 2012 | 1 day | Nottinghamshire | Somerset | Trent Bridge | Clydesdale Bank 40 | ||
| Monday, June 04, 2012 | 1 day | Leicestershire | Netherlands | Grace Road | Clydesdale Bank 40 | ||
| Monday, June 04, 2012 | 1 day | Essex | Gloucestershire | Chelmsford | Clydesdale Bank 40 | ||
| Monday, June 04, 2012 | 1 day | Hampshire | Scotland | Rose Bowl | Clydesdale Bank 40 | ||
| Tuesday, June 05, 2012 | 4 days | Leicestershire | Derbyshire | Grace Road | LV= County Championship 2 | ||
| Tuesday, June 05, 2012 | 1 day | Unicorns | Kent | tbc | Clydesdale Bank 40 | ||
| Tuesday, June 05, 2012 | 1 day | Lancashire | Worcestershire | Old Trafford | Clydesdale Bank 40 | ||
| Tuesday, June 05, 2012 | 4 days | Durham | Warwickshire | Emirates Durham ICG | LV= County Championship 1 | ||
| Tuesday, June 05, 2012 | 4 days | Middlesex | Somerset | Lord's | LV= County Championship 1 | ||
| Tuesday, June 05, 2012 | 1 day | Surrey | Scotland | Kia Oval | Clydesdale Bank 40 | ||
| Tuesday, June 05, 2012 | 1 day | Northamptonshire | Sussex | Northampton | Clydesdale Bank 40 | ||
| Wednesday, June 06, 2012 | 4 days | Northamptonshire | Essex | Northampton | LV= County Championship 2 | ||
| Wednesday, June 06, 2012 | 4 days | Sussex | Surrey | Horsham | LV= County Championship 1 | ||
| Wednesday, June 06, 2012 | 4 days | Nottinghamshire | Lancashire | Trent Bridge | LV= County Championship 1 | ||
| Wednesday, June 06, 2012 | 4 days | Glamorgan | Yorkshire | Colwyn Bay | LV= County Championship 2 | ||
| Wednesday, June 06, 2012 | 4 days | Kent | Hampshire | Tunbridge Wells | LV= County Championship 2 | ||
| Thursday, June 07, 2012 | 5 days | England | West Indies | Edgbaston | Investec Test Match | ||
| Friday, June 08, 2012 | 1 day | Netherlands | Worcestershire | tbc | Clydesdale Bank 40 | ||
| Sunday, June 10, 2012 | 1 day | Glamorgan | Durham | Colwyn Bay | Clydesdale Bank 40 | ||
| Sunday, June 10, 2012 | 1 day | Kent | Northamptonshire | Tunbridge Wells | Clydesdale Bank 40 | ||
| Sunday, June 10, 2012 | 1 day | Middlesex | Lancashire | Lord's | Clydesdale Bank 40 | ||
| Sunday, June 10, 2012 | 1 day | Sussex | Derbyshire | Horsham | Clydesdale Bank 40 | ||
| Sunday, June 10, 2012 | 1 day | Worcestershire | Gloucestershire | New Road | Clydesdale Bank 40 | ||
| Tuesday, June 12, 2012 | 1 day | Kent | Sussex | Tunbridge Wells | Friends Life t20 | ||
| Tuesday, June 12, 2012 | 1 day | Leicestershire | Nottinghamshire | Grace Road | Friends Life t20 | ||
| Wednesday, June 13, 2012 | 1 day | Middlesex | West Indies | Lord's | Tour Match 1 | ||
| Wednesday, June 13, 2012 | 1 day | Somerset | Warwickshire | Taunton | Friends Life t20 | ||
| Thursday, June 14, 2012 | 1 day | Derbyshire | Lancashire | Derby | Friends Life t20 | F | |
| Thursday, June 14, 2012 | 1 day | Middlesex | Surrey | Lord's | Friends Life t20 | F | |
| Thursday, June 14, 2012 | 1 day | Sussex | Hampshire | Hove | Friends Life t20 | F | |
| Friday, June 15, 2012 | 1 day | Yorkshire | Durham | Headingley Carnegie | Friends Life t20 | ||
| Friday, June 15, 2012 | 1 day | Warwickshire | Worcestershire | Edgbaston | Friends Life t20 | F | |
| Friday, June 15, 2012 | 1 day | Leicestershire | Lancashire | Grace Road | Friends Life t20 | ||
| Friday, June 15, 2012 | 1 day | Northamptonshire | Glamorgan | Northampton | Friends Life t20 | F | |
| Friday, June 15, 2012 | 1 day | Kent | Hampshire | Canterbury | Friends Life t20 | F | |
| Friday, June 15, 2012 | 1 day | Nottinghamshire | Derbyshire | Trent Bridge | Friends Life t20 | ||
| Friday, June 15, 2012 | 1 day | Gloucestershire | Somerset | Bristol | Friends Life t20 | ||
| Friday, June 15, 2012 | 1 day | Surrey | Essex | Kia Oval | Friends Life t20 | F | |
| Saturday, June 16, 2012 | 1 day | England | West Indies | Rose Bowl | NatWest Series | ||
| Sunday, June 17, 2012 | 1 day | Yorkshire | Leicestershire | Headingley Carnegie | Friends Life t20 | ||
| Sunday, June 17, 2012 | 1 day | Glamorgan | Warwickshire | TBC | Friends Life t20 | ||
| Sunday, June 17, 2012 | 1 day | Durham | Nottinghamshire | Emirates Durham ICG | Friends Life t20 | ||
| Sunday, June 17, 2012 | 1 day | Worcestershire | Gloucestershire | New Road | Friends Life t20 | ||
| Sunday, June 17, 2012 | 1 day | Somerset | Northamptonshire | Taunton | Friends Life t20 | ||
| Sunday, June 17, 2012 | 1 day | Middlesex | Sussex | Lord's | Friends Life t20 | ||
| Sunday, June 17, 2012 | 1 day | Kent | Surrey | TBC | Friends Life t20 | ||
| Monday, June 18, 2012 | 1 day | Derbyshire | Yorkshire | Derby | Friends Life t20 | F | |
| Tuesday, June 19, 2012 | 1 day | England | West Indies | Kia Oval | NatWest Series | F | |
| Tuesday, June 19, 2012 | 1 day | Lancashire | Leicestershire | Old Trafford | Friends Life t20 | F | |
| Tuesday, June 19, 2012 | 1 day | Essex | Kent | Chelmsford | Friends Life t20 | F | |
| Tuesday, June 19, 2012 | 1 day | Warwickshire | Northamptonshire | Edgbaston | Friends Life t20 | F | |
| Tuesday, June 19, 2012 | 1 day | Hampshire | Middlesex | Rose Bowl | Friends Life t20 | F | |
| Wednesday, June 20, 2012 | 1 day | Surrey | Hampshire | Kia Oval | Friends Life t20 | F | |
| Wednesday, June 20, 2012 | 1 day | Derbyshire | Durham | TBC | Friends Life t20 | F | |
| Wednesday, June 20, 2012 | 1 day | Glamorgan | Worcestershire | TBC | Friends Life t20 | ||
| Thursday, June 21, 2012 | 1 day | Warwickshire | Somerset | Edgbaston | Friends Life t20 | F | |
| Thursday, June 21, 2012 | 1 day | Middlesex | Essex | Lord's | Friends Life t20 | F | |
| Thursday, June 21, 2012 | 1 day | Leicestershire | Australia | Grace Road | Tour Match 1 | ||
| Friday, June 22, 2012 | 1 day | Worcestershire | Warwickshire | New Road | Friends Life t20 | ||
| Friday, June 22, 2012 | 1 day | Somerset | Glamorgan | Taunton | Friends Life t20 | ||
| Friday, June 22, 2012 | 1 day | Essex | Surrey | Chelmsford | Friends Life t20 | F | |
| Friday, June 22, 2012 | 1 day | Lancashire | Nottinghamshire | Old Trafford | Friends Life t20 | F | |
| Friday, June 22, 2012 | 1 day | Sussex | Middlesex | Hove | Friends Life t20 | F | |
| Friday, June 22, 2012 | 1 day | Leicestershire | Derbyshire | Grace Road | Friends Life t20 | ||
| Friday, June 22, 2012 | 1 day | Hampshire | Kent | Rose Bowl | Friends Life t20 | F | |
| Friday, June 22, 2012 | 1 day | Gloucestershire | Northamptonshire | Bristol | Friends Life t20 | ||
| Friday, June 22, 2012 | 1 day | England | West Indies | Headingley Carnegie | NatWest Series | ||
| Friday, June 22, 2012 | 1 day | Durham | Yorkshire | Emirates Durham ICG | Friends Life t20 | ||
| Saturday, June 23, 2012 | 1 day | Glamorgan | Gloucestershire | SWALEC Stadium | Friends Life t20 | F | |
| Saturday, June 23, 2012 | 1 day | Ireland | Australia | Stormont | ODI | ||
| Saturday, June 23, 2012 | 1 day | Northamptonshire | Worcestershire | Northampton | Friends Life t20 | ||
| Sunday, June 24, 2012 | 1 day | Yorkshire | Nottinghamshire | Scarborough | Friends Life t20 | ||
| Sunday, June 24, 2012 | 1 day | England | West Indies | Trent Bridge | NatWest Int T20 | ||
| Sunday, June 24, 2012 | 1 day | Sussex | Essex | Hove | Friends Life t20 | ||
| Monday, June 25, 2012 | 1 day | Lancashire | Durham | Old Trafford | Friends Life t20 | F | |
| Tuesday, June 26, 2012 | 1 day | Essex | Australia | Chelmsford | Tour Match 1 | F | |
| Tuesday, June 26, 2012 | 1 day | Kent | Middlesex | Canterbury | Friends Life t20 | F | |
| Tuesday, June 26, 2012 | 1 day | Northamptonshire | Somerset | Northampton | Friends Life t20 | F | |
| Tuesday, June 26, 2012 | 1 day | England Women | India Women | Canterbury | NatWest Wom Int T20 | ||
| Wednesday, June 27, 2012 | 1 day | Durham | Derbyshire | Emirates Durham ICG | Friends Life t20 | ||
| Wednesday, June 27, 2012 | 1 day | Gloucestershire | Warwickshire | Bristol | Friends Life t20 | ||
| Wednesday, June 27, 2012 | 1 day | Leicestershire | Yorkshire | Grace Road | Friends Life t20 | ||
| Wednesday, June 27, 2012 | 1 day | Middlesex | Hampshire | Richmond | Friends Life t20 | ||
| Thursday, June 28, 2012 | 1 day | England Women | India Women | Chelmsford | NatWest Wom Int T20 | ||
| Thursday, June 28, 2012 | 1 day | Essex | Sussex | Chelmsford | Friends Life t20 | F | |
| Friday, June 29, 2012 | 1 day | Nottinghamshire | Durham | Trent Bridge | Friends Life t20 | ||
| Friday, June 29, 2012 | 1 day | Worcestershire | Glamorgan | New Road | Friends Life t20 | ||
| Friday, June 29, 2012 | 1 day | Sussex | Kent | Hove | Friends Life t20 | F | |
| Friday, June 29, 2012 | 1 day | Yorkshire | Lancashire | Headingley Carnegie | Friends Life t20 | ||
| Friday, June 29, 2012 | 1 day | Somerset | Gloucestershire | Taunton | Friends Life t20 | ||
| Friday, June 29, 2012 | 1 day | Essex | Hampshire | Chelmsford | Friends Life t20 | F | |
| Friday, June 29, 2012 | 1 day | England | Australia | Lord's | NatWest Series | ||
| Friday, June 29, 2012 | 1 day | Derbyshire | Leicestershire | Derby | Friends Life t20 | F | |
| Friday, June 29, 2012 | 1 day | Northamptonshire | Warwickshire | Northampton | Friends Life t20 | F | |
| Saturday, June 30, 2012 | 1 day | Hampshire | Surrey | Rose Bowl | Friends Life t20 | ||
| Saturday, June 30, 2012 | 1 day | Glamorgan | Northamptonshire | SWALEC Stadium | Friends Life t20 | F | |
| Sunday, July 01, 2012 | 1 day | Somerset | Worcestershire | Taunton | Friends Life t20 | ||
| Sunday, July 01, 2012 | 1 day | Lancashire | Derbyshire | Old Trafford | Friends Life t20 | ||
| Sunday, July 01, 2012 | 1 day | Durham | Leicestershire | Emirates Durham ICG | Friends Life t20 | ||
| Sunday, July 01, 2012 | 1 day | England Women | India Women | Lord's | NatWest Women's Series | ||
| Sunday, July 01, 2012 | 1 day | England | Australia | Kia Oval | NatWest Series | ||
| Monday, July 02, 2012 | 1 day | Gloucestershire | Glamorgan | Bristol | Friends Life t20 | ||
| Tuesday, July 03, 2012 | 1 day | Nottinghamshire | Lancashire | Trent Bridge | Friends Life t20 | ||
| Tuesday, July 03, 2012 | 1 day | Surrey | Sussex | Kia Oval | Friends Life t20 | F | |
| Wednesday, July 04, 2012 | 1 day | England | Australia | Edgbaston | NatWest Series | F | |
| Wednesday, July 04, 2012 | 1 day | England Women | India Women | Taunton | NatWest Women's Series | ||
| Thursday, July 05, 2012 | 1 day | Surrey | Kent | Kia Oval | Friends Life t20 | F | |
| Thursday, July 05, 2012 | 1 day | Essex | Middlesex | Chelmsford | Friends Life t20 | F | |
| Thursday, July 05, 2012 | 1 day | Gloucestershire | Worcestershire | Bristol | Friends Life t20 | ||
| Thursday, July 05, 2012 | 1 day | Nottinghamshire | Yorkshire | Trent Bridge | Friends Life t20 | F | |
| Thursday, July 05, 2012 | 1 day | England Women | India Women | Taunton | NatWest Women's Series | ||
| Friday, July 06, 2012 | 1 day | Leicestershire | Durham | Grace Road | Friends Life t20 | ||
| Friday, July 06, 2012 | 1 day | Derbyshire | Nottinghamshire | Derby | Friends Life t20 | F | |
| Friday, July 06, 2012 | 1 day | Glamorgan | Somerset | SWALEC Stadium | Friends Life t20 | ||
| Friday, July 06, 2012 | 1 day | Hampshire | Sussex | Rose Bowl | Friends Life t20 | F | |
| Friday, July 06, 2012 | 1 day | Lancashire | Yorkshire | Old Trafford | Friends Life t20 | F | |
| Friday, July 06, 2012 | 1 day | Surrey | Middlesex | Kia Oval | Friends Life t20 | F | |
| Friday, July 06, 2012 | 1 day | Warwickshire | Gloucestershire | Edgbaston | Friends Life t20 | F | |
| Friday, July 06, 2012 | 1 day | Worcestershire | Northamptonshire | New Road | Friends Life t20 | ||
| Friday, July 06, 2012 | 1 day | Kent | Essex | Canterbury | Friends Life t20 | F | |
| Saturday, July 07, 2012 | 1 day | England | Australia | Emirates Durham ICG | NatWest Series | ||
| Sunday, July 08, 2012 | 1 day | Sussex | Surrey | Hove | Friends Life t20 | ||
| Sunday, July 08, 2012 | 1 day | England Women | India Women | Truro | NatWest Women's Series | ||
| Sunday, July 08, 2012 | 1 day | Yorkshire | Derbyshire | Headingley Carnegie | Friends Life t20 | ||
| Sunday, July 08, 2012 | 1 day | Warwickshire | Glamorgan | Edgbaston | Friends Life t20 | ||
| Sunday, July 08, 2012 | 1 day | Nottinghamshire | Leicestershire | Trent Bridge | Friends Life t20 | ||
| Sunday, July 08, 2012 | 1 day | Northamptonshire | Gloucestershire | Northampton | Friends Life t20 | ||
| Sunday, July 08, 2012 | 1 day | Middlesex | Kent | Uxbridge | Friends Life t20 | ||
| Sunday, July 08, 2012 | 1 day | Hampshire | Essex | Rose Bowl | Friends Life t20 | ||
| Sunday, July 08, 2012 | 1 day | Durham | Lancashire | Emirates Durham ICG | Friends Life t20 | ||
| Sunday, July 08, 2012 | 1 day | Worcestershire | Somerset | New Road | Friends Life t20 | ||
| Monday, July 09, 2012 | 2 days | Somerset | South Africa | Taunton | Tour Match 2 | ||
| Tuesday, July 10, 2012 | 4 days | Worcestershire | Durham | New Road | LV= County Championship 1 | ||
| Tuesday, July 10, 2012 | 1 day | England | Australia | Old Trafford | NatWest Series | F | |
| Wednesday, July 11, 2012 | 1 day | England Women | India Women | Wormsley | NatWest Women's Series | ||
| Wednesday, July 11, 2012 | 1 day | Warwickshire | Sussex | Edgbaston | Clydesdale Bank 40 | F | |
| Wednesday, July 11, 2012 | 1 day | Netherlands | Leicestershire | tbc | Clydesdale Bank 40 | ||
| Wednesday, July 11, 2012 | 4 days | Hampshire | Yorkshire | Rose Bowl | LV= County Championship 2 | ||
| Wednesday, July 11, 2012 | 4 days | Middlesex | Nottinghamshire | Uxbridge | LV= County Championship 1 | ||
| Wednesday, July 11, 2012 | 4 days | Gloucestershire | Essex | Cheltenham | LV= County Championship 2 | ||
| Wednesday, July 11, 2012 | 4 days | Surrey | Lancashire | Guildford | LV= County Championship 1 | ||
| Thursday, July 12, 2012 | 1 day | Glamorgan | Somerset | SWALEC Stadium | Clydesdale Bank 40 | F | |
| Thursday, July 12, 2012 | 4 days | Warwickshire | Sussex | Edgbaston | LV= County Championship 1 | ||
| Friday, July 13, 2012 | 3 days | Kent | South Africa | Canterbury | Tour Match 3 | ||
| Friday, July 13, 2012 | 1 day | Northamptonshire | Derbyshire | Northampton | Clydesdale Bank 40 | F | |
| Saturday, July 14, 2012 | 1 day | Leicestershire | Worcestershire | Grace Road | Clydesdale Bank 40 | ||
| Saturday, July 14, 2012 | 4 days | Northamptonshire | Glamorgan | Northampton | LV= County Championship 2 | ||
| Sunday, July 15, 2012 | 1 day | Surrey | Nottinghamshire | Guildford | Clydesdale Bank 40 | ||
| Sunday, July 15, 2012 | 1 day | Somerset | Scotland | Taunton | Clydesdale Bank 40 | ||
| Sunday, July 15, 2012 | 1 day | Derbyshire | Unicorns | Chesterfield | Clydesdale Bank 40 | ||
| Sunday, July 15, 2012 | 1 day | Gloucestershire | Essex | Cheltenham | Clydesdale Bank 40 | ||
| Sunday, July 15, 2012 | 1 day | Hampshire | Durham | Rose Bowl | Clydesdale Bank 40 | ||
| Sunday, July 15, 2012 | 1 day | Middlesex | Leicestershire | Uxbridge | Clydesdale Bank 40 | ||
| Monday, July 16, 2012 | 1 day | Lancashire | Middlesex | Old Trafford | Clydesdale Bank 40 | F | |
| Monday, July 16, 2012 | 1 day | Kent | Sussex | Canterbury | Clydesdale Bank 40 | F | |
| Tuesday, July 17, 2012 | 1 day | Gloucestershire | Worcestershire | Cheltenham | Clydesdale Bank 40 | ||
| Tuesday, July 17, 2012 | 1 day | Nottinghamshire | Hampshire | Trent Bridge | Clydesdale Bank 40 | F | |
| Wednesday, July 18, 2012 | 4 days | Gloucestershire | Leicestershire | Cheltenham | LV= County Championship 2 | ||
| Wednesday, July 18, 2012 | 4 days | Somerset | Warwickshire | Taunton | LV= County Championship 1 | ||
| Wednesday, July 18, 2012 | 4 days | Lancashire | Worcestershire | Old Trafford | LV= County Championship 1 | ||
| Wednesday, July 18, 2012 | 4 days | Nottinghamshire | Surrey | Trent Bridge | LV= County Championship 1 | ||
| Wednesday, July 18, 2012 | 4 days | Derbyshire | Yorkshire | Chesterfield | LV= County Championship 2 | ||
| Wednesday, July 18, 2012 | 1 day | England U19 | Ireland U19 | Grace Road | U19 ODI | ||
| Wednesday, July 18, 2012 | 1 day | Essex | Middlesex | Chelmsford | Clydesdale Bank 40 | F | |
| Wednesday, July 18, 2012 | 4 days | Sussex | Durham | Arundel | LV= County Championship 1 | ||
| Thursday, July 19, 2012 | 4 days | Kent | Glamorgan | Canterbury | LV= County Championship 2 | ||
| Thursday, July 19, 2012 | 5 days | England | South Africa | Kia Oval | Investec Test Match | ||
| Thursday, July 19, 2012 | 4 days | Essex | Hampshire | Chelmsford | LV= County Championship 2 | ||
| Friday, July 20, 2012 | 1 day | England U19 | Ireland U19 | Grace Road | U19 ODI | ||
| Sunday, July 22, 2012 | 1 day | Warwickshire | Unicorns | Edgbaston | Clydesdale Bank 40 | ||
| Sunday, July 22, 2012 | 1 day | Derbyshire | Yorkshire | Chesterfield | Clydesdale Bank 40 | ||
| Sunday, July 22, 2012 | 1 day | Gloucestershire | Middlesex | Cheltenham | Clydesdale Bank 40 | ||
| Sunday, July 22, 2012 | 1 day | Leicestershire | Lancashire | Grace Road | Clydesdale Bank 40 | ||
| Sunday, July 22, 2012 | 1 day | Nottinghamshire | Scotland | Trent Bridge | Clydesdale Bank 40 | ||
| Sunday, July 22, 2012 | 1 day | Somerset | Durham | Taunton | Clydesdale Bank 40 | ||
| Sunday, July 22, 2012 | 1 day | Sussex | Northamptonshire | Arundel | Clydesdale Bank 40 | ||
| Tuesday, July 24, 2012 | 1 day | tbc | Friends Life t20 QF | ||||
| Tuesday, July 24, 2012 | 1 day | tbc | Friends Life t20 QF | ||||
| Wednesday, July 25, 2012 | 1 day | tbc | Friends Life t20 QF | ||||
| Wednesday, July 25, 2012 | 1 day | tbc | Friends Life t20 QF | ||||
| Friday, July 27, 2012 | 4 days | Leicestershire | Yorkshire | Grace Road | LV= County Championship 2 | ||
| Friday, July 27, 2012 | 4 days | Hampshire | Kent | Rose Bowl | LV= County Championship 2 | ||
| Friday, July 27, 2012 | 1 day | Netherlands | Gloucestershire | VRA Amstelveen, Amsterdam | Clydesdale Bank 40 | ||
| Friday, July 27, 2012 | 3 days | Derbyshire | Australia A | Derby | Tour Match 3 | ||
| Friday, July 27, 2012 | 4 days | Warwickshire | Surrey | Edgbaston | LV= County Championship 1 | ||
| Friday, July 27, 2012 | 4 days | Nottinghamshire | Sussex | Trent Bridge | LV= County Championship 1 | ||
| Friday, July 27, 2012 | 4 days | Durham | Middlesex | Emirates Durham ICG | LV= County Championship 1 | ||
| Friday, July 27, 2012 | 2 days | Worcestershire | South Africa | New Road | Tour Match 2 | ||
| Saturday, July 28, 2012 | 1 day | Somerset | Glamorgan | TBC | Clydesdale Bank 40 | ||
| Sunday, July 29, 2012 | 1 day | Glamorgan | Scotland | SWALEC Stadium | Clydesdale Bank 40 | ||
| Sunday, July 29, 2012 | 1 day | Unicorns | Northamptonshire | tbc | Clydesdale Bank 40 | ||
| Sunday, July 29, 2012 | 1 day | Worcestershire | Essex | New Road | Clydesdale Bank 40 | ||
| Monday, July 30, 2012 | 1 day | Lancashire | Gloucestershire | Old Trafford | Clydesdale Bank 40 | F | |
| Tuesday, July 31, 2012 | 1 day | Derbyshire | Kent | Derby | Clydesdale Bank 40 | F | |
| Wednesday, August 01, 2012 | 4 days | Essex | Leicestershire | Chelmsford | LV= County Championship 2 | ||
| Wednesday, August 01, 2012 | 4 days | Glamorgan | Gloucestershire | Swansea | LV= County Championship 2 | ||
| Wednesday, August 01, 2012 | 4 days | Northamptonshire | Yorkshire | Northampton | LV= County Championship 2 | ||
| Wednesday, August 01, 2012 | 1 day | Nottinghamshire | Surrey | Trent Bridge | Clydesdale Bank 40 | F | |
| Wednesday, August 01, 2012 | 3 days | Durham | Australia A | Emirates Durham ICG | Tour Match 3 | ||
| Wednesday, August 01, 2012 | 4 days | Sussex | Worcestershire | Hove | LV= County Championship 1 | ||
| Wednesday, August 01, 2012 | 4 days | Middlesex | Warwickshire | Uxbridge | LV= County Championship 1 | ||
| Wednesday, August 01, 2012 | 4 days | Lancashire | Somerset | Liverpool | LV= County Championship 1 | ||
| Thursday, August 02, 2012 | 5 days | England | South Africa | Headingley Carnegie | Investec Test Match | ||
| Thursday, August 02, 2012 | 4 days | Derbyshire | Kent | Derby | LV= County Championship 2 | ||
| Sunday, August 05, 2012 | 1 day | Scotland | Durham | tbc | Clydesdale Bank 40 | ||
| Sunday, August 05, 2012 | 1 day | Middlesex | Worcestershire | Uxbridge | Clydesdale Bank 40 | ||
| Sunday, August 05, 2012 | 1 day | Essex | Leicestershire | Chelmsford | Clydesdale Bank 40 | ||
| Sunday, August 05, 2012 | 1 day | Glamorgan | Nottinghamshire | Swansea | Clydesdale Bank 40 | ||
| Monday, August 06, 2012 | 4 days | Gloucestershire | Hampshire | Bristol | LV= County Championship 2 | ||
| Tuesday, August 07, 2012 | 1 day | Warwickshire | Yorkshire | Edgbaston | Clydesdale Bank 40 | F | |
| Tuesday, August 07, 2012 | 4 days | Somerset | Nottinghamshire | Taunton | LV= County Championship 1 | ||
| Tuesday, August 07, 2012 | 4 days | Durham | Surrey | Emirates Durham ICG | LV= County Championship 1 | ||
| Tuesday, August 07, 2012 | 4 days | England Lions | Australia A | Old Trafford | Tour Match 4 | ||
| Wednesday, August 08, 2012 | 4 days | Kent | Essex | Canterbury | LV= County Championship 2 | ||
| Wednesday, August 08, 2012 | 4 days | Warwickshire | Worcestershire | Edgbaston | LV= County Championship 1 | ||
| Wednesday, August 08, 2012 | 1 day | Derbyshire | Sussex | Derby | Clydesdale Bank 40 | F | |
| Thursday, August 09, 2012 | 1 day | Northamptonshire | Yorkshire | Northampton | Clydesdale Bank 40 | F | |
| Friday, August 10, 2012 | 4 days | Sussex | Middlesex | Hove | LV= County Championship 1 | ||
| Friday, August 10, 2012 | 2 days | Derbyshire | South Africa | Derby | Tour Match 2 | ||
| Friday, August 10, 2012 | 1 day | Glamorgan | Hampshire | SWALEC Stadium | Clydesdale Bank 40 | F | |
| Friday, August 10, 2012 | 4 days | Northamptonshire | Leicestershire | Northampton | LV= County Championship 2 | ||
| Saturday, August 11, 2012 | 1 day | Durham | Surrey | Emirates Durham ICG | Clydesdale Bank 40 | ||
| Sunday, August 12, 2012 | 1 day | Kent | Derbyshire | Canterbury | Clydesdale Bank 40 | ||
| Sunday, August 12, 2012 | 1 day | Lancashire | Netherlands | Old Trafford | Clydesdale Bank 40 | ||
| Sunday, August 12, 2012 | 1 day | Scotland | England | Citylets Grange | ODI | ||
| Sunday, August 12, 2012 | 1 day | Somerset | Nottinghamshire | Taunton | Clydesdale Bank 40 | ||
| Sunday, August 12, 2012 | 1 day | Yorkshire | Unicorns | TBC | Clydesdale Bank 40 | ||
| Sunday, August 12, 2012 | 1 day | Durham | Glamorgan | Emirates Durham ICG | Clydesdale Bank 40 | ||
| Monday, August 13, 2012 | 1 day | Warwickshire | Kent | Edgbaston | Clydesdale Bank 40 | F | |
| Tuesday, August 14, 2012 | 4 days | England Lions | Australia A | Edgbaston | Tour Match 4 | ||
| Tuesday, August 14, 2012 | 1 day | Hampshire | Somerset | Rose Bowl | Clydesdale Bank 40 | F | |
| Wednesday, August 15, 2012 | 1 day | Sussex | Warwickshire | Hove | Clydesdale Bank 40 | F | |
| Wednesday, August 15, 2012 | 4 days | Hampshire | Northamptonshire | Rose Bowl | LV= County Championship 2 | ||
| Wednesday, August 15, 2012 | 4 days | Nottinghamshire | Durham | Trent Bridge | LV= County Championship 1 | ||
| Wednesday, August 15, 2012 | 4 days | Yorkshire | Derbyshire | Headingley Carnegie | LV= County Championship 2 | ||
| Wednesday, August 15, 2012 | 4 days | Surrey | Middlesex | Kia Oval | LV= County Championship 1 | ||
| Wednesday, August 15, 2012 | 4 days | Worcestershire | Lancashire | New Road | LV= County Championship 1 | ||
| Wednesday, August 15, 2012 | 4 days | Essex | Glamorgan | Colchester | LV= County Championship 2 | ||
| Wednesday, August 15, 2012 | 4 days | Gloucestershire | Kent | Bristol | LV= County Championship 2 | ||
| Thursday, August 16, 2012 | 5 days | England | South Africa | Lord's | Investec Test Match | ||
| Sunday, August 19, 2012 | 1 day | Northamptonshire | Kent | Northampton | Clydesdale Bank 40 | ||
| Sunday, August 19, 2012 | 1 day | Yorkshire | Sussex | Headingley Carnegie | Clydesdale Bank 40 | ||
| Sunday, August 19, 2012 | 1 day | Worcestershire | Leicestershire | New Road | Clydesdale Bank 40 | ||
| Sunday, August 19, 2012 | 1 day | Scotland | Somerset | tbc | Clydesdale Bank 40 | ||
| Sunday, August 19, 2012 | 1 day | Gloucestershire | Lancashire | Bristol | Clydesdale Bank 40 | ||
| Sunday, August 19, 2012 | 1 day | Essex | Netherlands | Colchester | Clydesdale Bank 40 | ||
| Sunday, August 19, 2012 | 1 day | Hampshire | Surrey | Rose Bowl | Clydesdale Bank 40 | ||
| Sunday, August 19, 2012 | 1 day | Unicorns | Warwickshire | tbc | Clydesdale Bank 40 | ||
| Sunday, August 19, 2012 | 1 day | Nottinghamshire | Durham | Trent Bridge | Clydesdale Bank 40 | ||
| Tuesday, August 21, 2012 | 4 days | Warwickshire | Middlesex | Edgbaston | LV= County Championship 1 | ||
| Tuesday, August 21, 2012 | 1 day | Surrey | Glamorgan | Kia Oval | Clydesdale Bank 40 | F | |
| Tuesday, August 21, 2012 | 4 days | Northamptonshire | Derbyshire | Northampton | LV= County Championship 2 | ||
| Tuesday, August 21, 2012 | 4 days | Leicestershire | Hampshire | Grace Road | LV= County Championship 2 | ||
| Tuesday, August 21, 2012 | 4 days | Durham | Worcestershire | Emirates Durham ICG | LV= County Championship 1 | ||
| Tuesday, August 21, 2012 | 4 days | Somerset | Sussex | Taunton | LV= County Championship 1 | ||
| Wednesday, August 22, 2012 | 1 day | Kent | Yorkshire | Canterbury | Clydesdale Bank 40 | F | |
| Wednesday, August 22, 2012 | 1 day | Gloucestershire | South Africa | Bristol | Tour Match 1 | ||
| Thursday, August 23, 2012 | 1 day | Essex | Lancashire | Chelmsford | Clydesdale Bank 40 | F | |
| Friday, August 24, 2012 | 1 day | England | South Africa | SWALEC Stadium | NatWest Series | ||
| Saturday, August 25, 2012 | 1 day | SWALEC Stadium | Friends Life t20 SF | ||||
| Saturday, August 25, 2012 | 1 day | SWALEC Stadium | Friends Life t20 SF | ||||
| Saturday, August 25, 2012 | 1 day | SWALEC Stadium | Friends Life t20 Final | ||||
| Monday, August 27, 2012 | 1 day | Leicestershire | Gloucestershire | Grace Road | Clydesdale Bank 40 | ||
| Monday, August 27, 2012 | 1 day | Derbyshire | Northamptonshire | Derby | Clydesdale Bank 40 | ||
| Monday, August 27, 2012 | 1 day | Durham | Hampshire | Emirates Durham ICG | Clydesdale Bank 40 | ||
| Monday, August 27, 2012 | 1 day | Middlesex | Essex | Lord's | Clydesdale Bank 40 | ||
| Monday, August 27, 2012 | 1 day | Somerset | Surrey | Taunton | Clydesdale Bank 40 | ||
| Monday, August 27, 2012 | 1 day | Sussex | Kent | TBC | Clydesdale Bank 40 | ||
| Monday, August 27, 2012 | 1 day | Worcestershire | Lancashire | New Road | Clydesdale Bank 40 | ||
| Monday, August 27, 2012 | 1 day | Yorkshire | Warwickshire | Scarborough | Clydesdale Bank 40 | ||
| Monday, August 27, 2012 | 1 day | Nottinghamshire | Glamorgan | Trent Bridge | Clydesdale Bank 40 | ||
| Tuesday, August 28, 2012 | 4 days | Yorkshire | Gloucestershire | Scarborough | LV= County Championship 2 | ||
| Tuesday, August 28, 2012 | 4 days | Somerset | Surrey | Taunton | LV= County Championship 1 | ||
| Tuesday, August 28, 2012 | 4 days | Warwickshire | Nottinghamshire | Edgbaston | LV= County Championship 1 | ||
| Tuesday, August 28, 2012 | 4 days | Worcestershire | Middlesex | New Road | LV= County Championship 1 | ||
| Tuesday, August 28, 2012 | 4 days | Lancashire | Durham | Old Trafford | LV= County Championship 1 | ||
| Tuesday, August 28, 2012 | 4 days | Leicestershire | Kent | Grace Road | LV= County Championship 2 | ||
| Tuesday, August 28, 2012 | 4 days | Glamorgan | Northamptonshire | SWALEC Stadium | LV= County Championship 2 | ||
| Tuesday, August 28, 2012 | 1 day | England | South Africa | Rose Bowl | NatWest Series | F | |
| Tuesday, August 28, 2012 | 4 days | Derbyshire | Essex | Derby | LV= County Championship 2 | ||
| Friday, August 31, 2012 | 1 day | England | South Africa | Kia Oval | NatWest Series | F | |
| Saturday, September 01, 2012 | 1 day | tbc | Clydesdale Bank 40 SF | ||||
| Saturday, September 01, 2012 | 1 day | tbc | Clydesdale Bank 40 SF | ||||
| Sunday, September 02, 2012 | 1 day | England | South Africa | Lord's | NatWest Series | ||
| Tuesday, September 04, 2012 | 4 days | Hampshire | Essex | Rose Bowl | LV= County Championship 2 | ||
| Tuesday, September 04, 2012 | 4 days | Kent | Derbyshire | Canterbury | LV= County Championship 2 | ||
| Tuesday, September 04, 2012 | 4 days | Gloucestershire | Northamptonshire | Bristol | LV= County Championship 2 | ||
| Tuesday, September 04, 2012 | 4 days | Middlesex | Lancashire | Lord's | LV= County Championship 1 | ||
| Tuesday, September 04, 2012 | 4 days | Surrey | Nottinghamshire | Kia Oval | LV= County Championship 1 | ||
| Tuesday, September 04, 2012 | 4 days | Sussex | Somerset | Hove | LV= County Championship 1 | ||
| Tuesday, September 04, 2012 | 4 days | Worcestershire | Warwickshire | New Road | LV= County Championship 1 | ||
| Tuesday, September 04, 2012 | 4 days | Yorkshire | Glamorgan | Headingley Carnegie | LV= County Championship 2 | ||
| Wednesday, September 05, 2012 | 1 day | England | South Africa | Trent Bridge | NatWest Series | F | |
| Saturday, September 08, 2012 | 1 day | England | South Africa | Emirates Durham ICG | NatWest Int T20 | ||
| Monday, September 10, 2012 | 1 day | England | South Africa | Old Trafford | NatWest Int T20 | F | |
| Tuesday, September 11, 2012 | 4 days | Lancashire | Surrey | Old Trafford | LV= County Championship 1 | ||
| Tuesday, September 11, 2012 | 4 days | Somerset | Worcestershire | Taunton | LV= County Championship 1 | ||
| Tuesday, September 11, 2012 | 4 days | Durham | Sussex | Emirates Durham ICG | LV= County Championship 1 | ||
| Tuesday, September 11, 2012 | 4 days | Nottinghamshire | Warwickshire | Trent Bridge | LV= County Championship 1 | ||
| Tuesday, September 11, 2012 | 4 days | Derbyshire | Hampshire | Derby | LV= County Championship 2 | ||
| Tuesday, September 11, 2012 | 4 days | Essex | Yorkshire | Chelmsford | LV= County Championship 2 | ||
| Tuesday, September 11, 2012 | 4 days | Glamorgan | Kent | SWALEC Stadium | LV= County Championship 2 | ||
| Tuesday, September 11, 2012 | 4 days | Leicestershire | Gloucestershire | Grace Road | LV= County Championship 2 | ||
| Wednesday, September 12, 2012 | 1 day | England | South Africa | Edgbaston | NatWest Int T20 | F | |
| Saturday, September 15, 2012 | 1 day | Lord's | Clydesdale Bank 40 Final |
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