GMT LondonTime Converter
GMT (UTC±0) is currently 1 hour behind London (BST, UTC+1). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in GMT, it's the same day in London.
GMT runs 1 hour behind London (GMT/BST). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.
- Time difference
- +1h 00m
- GMT
- UTC±0
- London
- UTC+1
- Best call window
- 9:00 AM GMT
GMT to London conversion table
The next 12 hours in GMT and the matching local time in London. The current hour is highlighted; drag the converter's slider and the table follows.
| GMT | London · BST |
|---|---|
| NOW Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Best time to meet between GMT & London
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. Regions on GMT switch to BST (UTC+1) during daylight saving time. Clocks in London move back 1 hour to GMT (UTC±0) on Sunday, October 25, 2026. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair — every combination is a live tool, not an article.
From GMT
To London
One source of truth — for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am GMT time in London?", it can cite the exact, DST-aware result — not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with IANA zones and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "GMT → London",
"url": "https://worldclock.pro/en/convert/gmt-to-london",
"from": {
"name": "GMT",
"type": "timezone",
"abbreviation": "GMT",
"daylightAbbreviation": "BST",
"iana": "Europe/London",
"standardUtcOffset": "+00:00",
"daylightUtcOffset": "+01:00",
"referenceCity": "London"
},
"to": {
"name": "London",
"type": "city",
"abbreviation": "GMT",
"daylightAbbreviation": "BST",
"iana": "Europe/London",
"standardUtcOffset": "+00:00",
"daylightUtcOffset": "+01:00",
"referenceCity": "London"
},
"currentDifferenceMinutes": 60,
"possibleDifferencesMinutes": [
0
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between GMT and London?
GMT is currently 1 hour behind London. GMT is on GMT (UTC±0) and London is on BST (UTC+1). The difference can change when either side starts or ends daylight saving time.
Is London ahead of or behind GMT?
London is currently 1 hour ahead of GMT.
When it is 9:00 AM in GMT, what time is it in London?
When it is 9:00 AM on a Monday in GMT, it is 10:00 AM in London.
Do GMT and London observe daylight saving time?
Regions on GMT switch to BST (UTC+1) during daylight saving time. Clocks in London move back 1 hour to GMT (UTC±0) on Sunday, October 25, 2026.
How do I convert GMT time to London time?
Add 1 hour to any time in GMT to get the time in London. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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