Information for Gatwick Express, Great Northern, Southern and Thameslink customers
Service alteration details
Incident reported: Saturday 25 October 2025 at 18:41
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Last updated
Saturday 25 October 2025 at 19:32
Train operators affected
Route(s) affected
Various Gatwick Express, Great Northern, Southern and Thameslink
Description
The autumn clock change is due to take place tonight.
For trains which start their journeys before the clock change, they will continue to operate in British Summer Time throughout their journeys.
When you are checking your journey, if your train is shown to depart a station between 01:00 and 01:59, please expect that it will do so in the hour before the clock change.
At 01:59, the clocks will go back, and will return to 01:00, but trains which are already en route will continue without further delay, despite the new time shown on the clocks.
The following services are affected by this:
Southern and Thameslink Mainline services:
22:43 Bedford to Brighton
23:37 Bedford to Brighton
00:02 Brighton to Bedford
01:08 London Victoria to Brighton
Southern services heading from London towards the Coastway routes:
23:16 London Victoria to Chichester
00:02 London Victoria to Worthing
01:08 Haywards Heath to Eastbourne
Southern "Metro" services:
00:30 London Victoria to Sutton
00:35 London Bridge to East Croydon
00:40 London Victoria to Norwood Junction
00:50 Purley to Tattenham Corner
Great Northern services:
00:02 London Kings Cross to Cambridge
00:18 London Kings Cross to Peterborough
00:32 London Kings Cross to Cambridge
01:07 London Kings Cross to Letchworth Garden City
01:10 London Kings Cross to Hertford North
01:40 London Kings Cross to Welwyn Garden City
Some replacement buses on the Great Northern network will also be affected.
For trains which start their entire journeys after 02:00, they will run in Greenwich Mean Time. This means they will depart according to the new times on the clocks.
Great Northern:
You can see the live departure boards, and view a live map of the network.
You can use the Great Northern app to find up-to-date information.
Southern / Gatwick Express:
You can see the live departure boards, and view a live map of the network.
You can use the Southern app to find up-to-date information.
Thameslink:
You can see the live departure boards, and view a live map of the network.
You can use the Thameslink app to find up-to-date information.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner.
Compensation:
You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.