The work will affect trains from Monday (February 3) to Friday (February 7).
We have compiled all the details on these works so that you can plan your journey this week.
Engineering work is taking place across the Southeastern network, closing various lines.
Monday (February 3):
From 10.45pm until the end of service, replacement buses will run between Tonbridge, Wadhurst and Hastings.
Monday to Thursday (February 3 to February 6):
From 11.45pm until the end of service, replacement buses will run between Maidstone East and Ashford International.
The 10.25pm and 11.25pm train from London Victoria to Ashford International services will be diverted between Otford and Ashford International via Sevenoaks.
The 10.29pm train from London Charing Cross to Ashford International, and the 12.25am train from London Victoria to Ashford International will terminate at Maidstone East.
From 11.55pm until the end of service, replacement buses will run between Beckenham Junction and Orpington, calling at all stations.
From 12.30am on Tuesday to Friday until the end of service, replacement buses will run between Lewisham and Orpington.
Monday, Wednesday and Thursday (February 3, February 5 and February 6):
From 11.50pm until the end of service, replacement buses will run between Sittingbourne and Sheerness-on-Sea.
The 11.20pm and 11.50pm train from London St Pancras International to Faversham services will terminate at Ebbsfleet International.
Replacement buses will run between Ebbsfleet International and Faversham calling at all stations except Higham, Newington, and Teynham.
Tuesday (February 4):
From 11.45pm until the end of service, replacement buses will run between Tunbridge Wells and Hastings, and will run between:
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Tunbridge Wells and Hastings, calling at Wadhurst, Battle, West St Leonards, and St Leonards Warrior Square
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Tunbridge Wells and Robertsbridge, calling at all stations
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Battle and Crowhurst
Tuesday, Thursday and Friday (February 4, February 6 and February 7):
From 12.10am until the end of service, replacement buses will run between Gillingham and Faversham.
Wednesday and Thursday (February 5 and February 6):
The 11.07pm train from London St Pancras International to Ramsgate via Dover Priory will be diverted between Dover Priory and Ramsgate by an alternative route stopping additionally at Faversham.
A replacement bus will run between Dover Priory and Ramsgate via Sandwich, calling at all stations.