Discover everything there is to know about the story of time, from the relationship between Greenwich and time to the people responsible for inventing groundbreaking, timekeeping instruments.
What is Greenwich Mean Time?
Everything you need to know about the historic international standard of civil time
Who has the time?
Our experts delve into the history of time – and reveal Greenwich's relationship with time
The history of timekeeping
Explore the evolution of time telling – and the treasures within our horological collections
Why do we change the clocks?
Learn about the history of British Summer Time (BST) and Daylight Saving Time