UK date and time guides
Practical guides to UK working days, clock changes and time zones. Use these resources to understand how UK dates and time rules work and plan around them.
UK time and clock changes
GMT vs BST — UK time zones explained
Understand the difference between Greenwich Mean Time and British Summer Time, when each applies, and how UK clock changes work.
When do the clocks change in the UK?
See when the clocks go forward and back, why the dates change each year, and what happens when British Summer Time starts and ends.
Working days
How many working days in 2026?
See the number of working days in 2026 after weekends and England and Wales bank holidays are taken into account.