MORE than 3,000 train times will change from May 20.

Govia Thameslink Railway has advised passengers to plan ahead for the biggest timetable shake-up in UK rail history in a month’s time.

GTR runs up to 3,200 trains a day – one every 27 seconds – and the times of all of these will change under the improved timetable.

Space for 40,000 more passengers into London at peak times will be added next month.

Expansion of service is a major step forward in the Government-sponsored £7 billion Thameslink programme, the upgrade project which includes the recently-completed £1billion upgrade of London Bridge station by Network Rail.

Charles Horton, GTR chief executive, said: “A huge number of passengers will notice the benefits in terms of new journeys, better intervals between trains, improved reliability, and more capacity across a wide region.

“These changes followed the biggest consultation of its kind.”

At the morning weekday peak between 6am and 9am, under the current timetable:

Brighton to London Bridge trains depart at 6am and 7.32am, and arrive at 7.20am and 8.48am respectively.

Brighton to London Blackfriars trains run at 6.06am arriving at 7.25am, and then 6.19am arriving 7.53am; 6.57am arriving 8.21am; and 7.22am arriving 8.49am.

Brighton to London Victoria trains depart 6.14am arriving 7.35am; 6.30am arriving 7.41am; 6.40am arriving 7.54am, 6.46am arriving 7.58am, 7.12am arriving 8.23am; 7.29am arriving 8.39am; and 7.44am arriving 8.55am.

Under the new timetable, at the morning weekday peak between 6am and 9am:

Brighton to London Bridge trains will depart at 6.05am arriving 7.15am; 6.22am arriving 7.23am; 6.48am arriving 7.53am; 7.07am arriving 8.15am; and 7.18am arriving 8.23am.

Brighton to London Blackfriars trains will no longer be a different route.

Blackfriars commuters should catch a London Bridge train, which will continue to Blackfriars arriving eight minutes later.

Brighton to Victoria trains will run 6.14am arriving 7.14am; 6.29am arriving 7.28am; 6.44am arriving 7.43am; 6.57am arriving 7.58am; 7.14am arriving 8.13am; 7.27am arriving 8.28am; and 7.44am arriving 8.43am;

To view existing timetables go to www.thameslinkrailway.com/travel-information/plan-your-journey/timetables.

To view the timetable which comes into effect from May go to www.railplan2020.com/timetables.

With more than 3,000 train times changed under the new timetable The Argus cannot compare and contrast every change to every journey.

If key services you use have been affected or cut email joel.adams@theargus.co.uk.