Some customs actually take place every day!
Date Event Article
Daily from Michaelmas (29th September) to Shrove Tuesday Bainbridge Hornblowing 
Daily Berwick Curfew
Daily London Buckingham Palace Changing the Guard
Daily from 11th October to 21st March Burgh le Marsh Curfew
Daily Canterbury Curfew
Weekdays from Michaelmas (29th September) to Lady Day (25th March) Chertsey Curfew Bell
Daily except Sundays Edinburgh One O'Clock Gun
Daily Lincoln Curfew
Daily London Lincoln's Inn Curfew
Daily Morpeth Curfew
Daily Oxford Curfew
Twice Daily Presteigne Curfew
Twice Daily Richmond Curfew
Daily Ripon Hornblowing
Daily except Sundays and Christmas & Boxing Days (usually) Sandwich Curfew Bell
Daily for 3 weeks both before and after Christmas Scarcliffe Curfew
Daily Tower of London Ceremony of the Keys
Daily (usually) Wallingford Curfew
Daily Winchester Wayfarers' Dole
Wednesdays and Saturdays from Easter to end of October Walsingham Pilgrimages
Monthly - 23rd of the Month London: Southwark Crossbones Vigil