GMT to London Time Converter
Convert Greenwich Mean Time to London instantly.
Scroll the timeline to check any hour of the day.
Greenwich Mean Time
GMT
6:08
London
GMT
7:08
London is on daylight savings (BST) right now, while GMT stays at UTC+0 all year.
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How the GMT to London time difference works
London is 1 hour ahead of GMT. Greenwich Mean Time (GMT) is the fixed UTC+0 reference time, used by the United Kingdom and Ireland in winter. London (GMT) is a city in United Kingdom. For example, 9:00 AM GMT is 10:00 AM London. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
1 hour
Daylight saving
London only
GMT offset
UTC+0
London offset
UTC+0
GMT to London conversion chart
| Greenwich Mean Time (GMT) | London (GMT) |
|---|---|
| 12:00 AM | 1:00 AM |
| 1:00 AM | 2:00 AM |
| 2:00 AM | 3:00 AM |
| 3:00 AM | 4:00 AM |
| 4:00 AM | 5:00 AM |
| 5:00 AM | 6:00 AM |
| 6:00 AM | 7:00 AM |
| 7:00 AM | 8:00 AM |
| 8:00 AM | 9:00 AM |
| 9:00 AM | 10:00 AM |
| 10:00 AM | 11:00 AM |
| 11:00 AM | 12:00 PM |
| 12:00 PM | 1:00 PM |
| 1:00 PM | 2:00 PM |
| 2:00 PM | 3:00 PM |
| 3:00 PM | 4:00 PM |
| 4:00 PM | 5:00 PM |
| 5:00 PM | 6:00 PM |
| 6:00 PM | 7:00 PM |
| 7:00 PM | 8:00 PM |
| 8:00 PM | 9:00 PM |
| 9:00 PM | 10:00 PM |
| 10:00 PM | 11:00 PM |
| 11:00 PM | 12:00 AM +1 day |
Best time to meet
A standard 9 to 5 workday overlaps from 9:00 AM to 4:00 PM GMT (10:00 AM to 5:00 PM London). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
London (GMT)
BirminghamLiverpoolGlasgowBristolLeedsBelfast
GMT to London questions
Is London ahead of or behind GMT?
London is 1 hour ahead of GMT. So 9:00 AM GMT is 10:00 AM London, and 5:00 PM GMT is 6:00 PM London.
What time is it in London when it is 12:00 PM GMT?
When it is 12:00 PM (noon) GMT in Greenwich Mean Time, it is 1:00 PM London in London.
How many hours difference is there between GMT and London?
There is a 1 hour difference. London (GMT) runs 1 hour ahead of Greenwich Mean Time (GMT).
Do GMT and London observe daylight saving time?
London observes daylight saving time but Greenwich Mean Time does not, so the difference between them changes by an hour twice a year. The United Kingdom and Ireland use GMT only in winter; from late March to late October they switch to British Summer Time (BST), one hour ahead of GMT.
What is the best time to schedule a meeting between GMT and London?
A standard 9-to-5 workday overlaps from 9:00 AM to 4:00 PM GMT (10:00 AM to 5:00 PM London). Scheduling inside that window keeps the call during business hours in both Greenwich Mean Time and London.
Which cities use GMT and London?
Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester. London (GMT) covers cities such as Birmingham, Liverpool, Glasgow, Bristol, Leeds, Belfast.