From 30 September, passengers will need to get to the station up to 5 minutes earlier if using the following trains/routes: Guildford via Cobham, between Windsor and Staines and between Reading and Virginia Water and the first few trains from Poole, Portsmouth, Haslemere, Salisbury or Weymouth.

Train times on some services will be subject to change from 30 September. This is to allow for trains that may run at a slightly reduced speed to account for leaf fall. Leaves that fall on the track can become compressed by the weight of the train which can in turn make the tracks more slippery than usual, giving the effect of black ice. The leaf fall period lasts from end of September through to early December.

Guildford via Cobham and Leatherhead
Most trains on the Guildford via Cobham route will start from Guildford three minutes earlier, running three minutes earlier at all stations prior to Surbiton, where their booked timings are regained, and some evening services on the Guildford via Leatherhead route will start from Guildford three minutes earlier at all stations as far as Efffingham Junction, where their booked timings are regained. Those running to Guildford via Cobham or Leatherhead will arrive three minutes later but no other intermediate station times will be affected.

Windsor line
Changes are occurring on the Windsor line where trains from Windsor will start two minutes earlier, running two minutes earlier at all stations until they reach Staines, where booked times are regained. Trains running to Windsor will arrive there two minutes later, with intermediate station times remaining as now.

Reading line
Changes are occurring on the Reading line where trains from Reading will start three minutes earlier, running three minutes earlier at all stations until they reach Virginia Water, where booked times are regained. This will also include the three morning peak trains from Aldershot via Camberley to Waterloo. Trains running from Waterloo to Reading will arrive there three minutes later, with intermediate station times remaining as now.

Dorking and Shepperton lines
Trains running from Waterloo to Dorking and Waterloo to Shepperton will arrive at those stations two minutes later, with intermediate stations remaining as now.

Portsmouth line
On the Portsmouth direct route the 04.30 and 05.17 (Mon to Fri) and 04.43 and 05.18 (Sats) from Portsmouth Harbour to Waterloo, will both start five minutes earlier, and run five minutes earlier from all stations prior to Guildford, where booked timings are regained. The 06.00 and 06.32 (Mon to Fri) from Haslemere to Waterloo, will both start three minutes earlier, and run three minutes earlier from all stations prior to Guildford where booked timings are regained. On Sundays the 06.48 from Portsmouth Harbour to Waterloo will run five minutes earlier and 07.32 from Portsmouth Harbour to Waterloo will run three minutes earlier from all stations prior to Guildford, where booked timings are regained.

Weymouth line
On the Weymouth line, the 05.54, 06.24 and 06.54 (Mon to Fri), 07.00 and 08.00 (Sats), 07.48 and 08.48 (Suns) Weymouth to Waterloo, will start five minutes earlier, and run five minutes earlier from all stations prior to Bournemouth, where booked timings are again resumed.
The 05.00, 05.26, 05.45 and 06.11 (Mon to Fri) services from Poole will all depart three minutes earlier from stations until Bournemouth or Brockenhurst, where booked times will resume.
The 06.15 (Mon to Fri) Bournemouth to Weymouth will also run four minutes earlier as far as Dorchester South, and 05.40 (Mon to Fri) Basingstoke to Weymouth will arrive Weymouth five minutes later.

Salisbury Line
On the Salisbury line, the 05.15 (Mon to Fri) from Yeovil Junction to Waterloo, 05.15 and 05.45 (Mon to Fri), 06.20 (Sats) Salisbury to Waterloo will all depart three minutes earlier from stations until Basingstoke where booked times will resume.