What is the time difference between UTC and London?
London is 1 hour ahead of UTC. When it is 23:47 in UTC, it is 00:47 in London — and already Tuesday there while UTC is still on Monday. UTC keeps UTC+0 and London keeps UTC+1 at this moment.
| Right now in UTC | 23:47, Monday 14 September |
|---|---|
| Right now in London | 00:47, Tuesday 15 September |
| Difference | 1 hour ahead of UTC |
| UTC offset | UTC+0 |
| London offset | UTC+1 |
Because both cities can change their clocks on different dates, the gap between them is not always the same number of hours through the year. This page recalculates it from the live time-zone rules each time it is opened, so the figure above is the gap at this exact moment.