Convert any time between WAT and GMT, with a full 24-hour table and the hours when both sides are actually at work.

WAT to GMT Time Converter

WAT and GMT are on the same offset right now. There is no time difference between them today.

Worth knowing right now. The UK and Ireland are currently on BST, not GMT, because daylight saving is in effect. The above is the gap between those two regions today, which is almost certainly what you want. Taken strictly as written, WAT to GMT is 1 hour.
WAT
West Africa Time
04:04:06 PM
Sunday, October 11, 2026
UTC+1:00
0
no difference
⇆ Reverse
GMT
Greenwich Mean Time
04:04:06 PM
Sunday, October 11, 2026
UTC+1:00

Best Time to Call Between WAT and GMT

Both zones are inside normal business hours between 9:00 AM and 5:00 PM WAT — that's 9:00 AM to 5:00 PM GMT. That's an 8-hour window.

both at work WAT only GMT only neither  —  hours along the strip are WAT.

WAT to GMT: Full 24-Hour Conversion Table

Shaded rows are working hours; the darker shade marks the hours when both zones are at work.

WATGMTWorking hours
12:00 AM 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 Both zones
10:00 AM 10:00 AM Both zones
11:00 AM 11:00 AM Both zones
12:00 PM 12:00 PM Both zones
1:00 PM 1:00 PM Both zones
2:00 PM 2:00 PM Both zones
3:00 PM 3:00 PM Both zones
4:00 PM 4:00 PM Both zones
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 —

What WAT and GMT Actually Are

WAT — West Africa Time

Lagos, Abuja, Kinshasa, Luanda, Douala. Standing at UTC+1:00 as written, and the region does not change its clocks, so that offset holds all year.

West Africa Time covers a long north-south strip of the continent, and because it sits near the equator its daylight hours barely shift across the year.

GMT — Greenwich Mean Time

The UK and Ireland in winter, plus Iceland, Portugal and much of West Africa. Standing at UTC as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, October 25, 2026, to GMT. Often used loosely as a synonym for UTC. They differ by less than a second, so for scheduling they are interchangeable.

Britain ran an experiment from 1968 to 1971 on permanent UTC+1, abandoning GMT entirely. It was scrapped after complaints about dark winter mornings in Scotland.

What This Means in Practice

This gap is not fixed

GMT changes its clocks and WAT does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, October 25, 2026 unless someone resets it.

Same clock, two names

WAT and GMT currently show the same time, so no conversion is needed today. They are separate labels because the regions behind them do not always stay in step.

Frequently Asked Questions

What is the time difference between WAT and GMT?

WAT and GMT are currently on the same offset, so there is no difference between them right now.

What is 9:00 AM WAT in GMT?

9:00 AM WAT is 9:00 AM GMT.

What are the best hours to schedule a call between WAT and GMT?

Between 9:00 AM and 5:00 PM WAT, which is 9:00 AM to 5:00 PM GMT. Both sides are inside normal business hours through that window.

Does the difference between WAT and GMT change during the year?

Yes. GMT observes daylight saving and WAT does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, October 25, 2026.

Does GMT always mean Greenwich Mean Time?

Often used loosely as a synonym for UTC. They differ by less than a second, so for scheduling they are interchangeable.

Converting between two time zones regularly? Bookmark this page — the clocks update live and the table follows daylight saving automatically.