Operator Stagecoach will be making the changes as part of county-wide improvements.
The changes have been made possible after East Sussex County Council made a successful bid to the UK Government to fund the Bus Improvement Plan.
Improvements to the 54 service, which operates between Uckfield and Eastbourne via Halland, East Hoathly and Hailsham, sees new extra evening services running from Monday to Saturday. Buses will also run on Sundays on this route for the first time.
The changes will be introduced from Sunday 23 July.
Freedom Leisure launches Swimathon 2026 at Crowborough Leisure Centre with Duncan Goodhew MBE
Councillors to consider more than 200 homes in Uckfield area
ABBA tribute Björn Again confirm Eastbourne date
Bluebell Walk has raised over £1million for local charities
Sussex schoolboy wows the judges on ITV's Britain's Got Talent
Two sentenced following East Grinstead robbery
Eligible residents able to seek free health checks in Wealden
Ashdown Radio Sport
