Train commuters are set for an advent calendar of chaos as work is set to continue on the latest phase of the Thameslink programme.

From Saturday, December 23, until New Year's Day, there will be changes to services across London and the south-east while Network Rail continues to work on the scheme.

Southeastern, Thameslink, Gatwick Express and Southern services will all be affected.

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We now know Southeastern will not run to or from Cannon Street, Charing Cross, Waterloo East, London Bridge, Deptford, Greenwich, Maze Hill, Westcombe Park, New Cross and St Johns for between December 23, and Monday, January 1.

Buses are going to replace trains between Redhill and Tonbridge.

A reduced timetable is also planned for services between London Victoria and Gatwick Airport from Saturday, December 23, and Monday, January 1.

None of these services will be running on Christmas Day and Boxing Day.

This advice has been given to passengers who think they might be affected:

• Your ticket will be accepted on some alternative routes
• Make sure you have a plan b
• London Victoria is expected to be very busy on December 27, 28 and 29. Try to avoid travelling in peak times
• Plan ahead and work from home where possible
• Look at taking an alternative route