Welcome to our new look website.
We are undergoing a major reconstruction and redesign – hope you like it!
If you need to know the time in various time-zones, check our new TimeZone Converter .
When do the clocks in various parts of the world change? Have a look at upcoming clock change dates for 2015 .
The reference point will be GMT. Clocks change, but Greenwich Mean Time never goes back or forward.
Maybe you want to know more about the history behind Greenwich Mean Time, when time was standardised across the whole world, and how it came about that Greenwich was chosen. What is GMT ?
Bookmark this page and check back often – we aim to have all the answers you'll ever need on time and the history of time. British Summer Time , for instance, has a fascinating history.