Tube trains will run around an hour later during next year's London Olympics, Transport for London (TfL) said today.
The extension will mean the last trains will leave central London as late as 2am during the Games.
There will also be extra trains running from Olympic events in east London between 10pm and 11.30pm to get spectators home.
A TfL spokesman said: "All transport improvements to support the London 2012 Games are on track, and we're working hard with all partners to support a fantastic Games and to keep London moving.
"To ensure everyone can get to and from their events, and enjoy all that London has to offer in 2012, we plan to run the Tube around an hour later than normal during the Games on all lines.
"This means customers will be able to leave the Olympic Park to connect with other services to get them home after the events, with last trains leaving central London between around 1.30am and 2am.
"We'll also be running extra Tube services on lines serving the Olympic Park to coincide with the end of events in the evenings, meaning additional services from around 10pm."