GMT to BST Time — Convert Greenwich Mean Time to British Summer Time

BST is currently 1 hour ahead of GMT.

GMT is equivalent to UTC for everyday use. In the UK it also refers to the winter (non-daylight-saving) time; in summer the UK moves to BST (UTC+1).

On Clockjumper, BST refers to British Summer Time (UTC+1), the UK's daylight-saving offset. The same letters are also used locally for Bangladesh Standard Time (UTC+6) — check the city or UTC offset to be sure which is meant.

Around January BST is the same time as GMT. Around July it is 1 hour ahead of GMT. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.

Is BST ahead of or behind GMT right now?

BST is currently 1 hour ahead of GMT.

What is the current GMT to BST time difference?

Right now the gap is 1 hour — BST is 1 hour ahead of GMT.

Does the GMT → BST offset change during the year?

Yes. Around January BST is the same time as GMT; around July it is 1 hour ahead of GMT. The converter above always reflects the correct offset for the date you pick.

Does GMT observe daylight saving time?

No — Greenwich Mean Time stays at a fixed UTC offset year-round.

Does BST observe daylight saving time?

BST is itself the daylight-saving form. British Summer Time is in force at UTC+1 through the summer months; outside that window the same zone is on GMT (UTC+0).

What time is 3 AM GMT in BST?

3:00 AM GMT is 4:00 AM BST.

What time is 8 AM GMT in BST?

8:00 AM GMT is 9:00 AM BST.

What time is 9 AM GMT in BST?

9:00 AM GMT is 10:00 AM BST.

What time is 10 AM GMT in BST?

10:00 AM GMT is 11:00 AM BST.

What time is 11 AM GMT in BST?

11:00 AM GMT is 12:00 PM BST.

What time is 12 PM (noon) GMT in BST?

12:00 PM GMT is 1:00 PM BST.

What time is 2 PM GMT in BST?

2:00 PM GMT is 3:00 PM BST.

What time is 3 PM GMT in BST?

3:00 PM GMT is 4:00 PM BST.

What time is 4 PM GMT in BST?

4:00 PM GMT is 5:00 PM BST.

What time is 5 PM GMT in BST?

5:00 PM GMT is 6:00 PM BST.

What time is 9 PM GMT in BST?

9:00 PM GMT is 10:00 PM BST.

What time is 10 PM GMT in BST?

10:00 PM GMT is 11:00 PM BST.

When is the best time to schedule a call between GMT and BST?

The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 4:00 PM GMT (≈ 7 hours). The midpoint of that window — 12:30 PM GMT, 1:30 PM BST — is the safest single slot to propose for a live call.

What time zone does GMT refer to?

GMT refers to Greenwich Mean Time (IANA: UTC).

What time zone does BST refer to?

BST refers to British Summer Time (IANA: Europe/London).

Is GMT on this page the same as other zones that share the letters "GMT"?

GMT is equivalent to UTC for everyday use. In the UK it also refers to the winter (non-daylight-saving) time; in summer the UK moves to BST (UTC+1).

Is BST on this page the same as other zones that share the letters "BST"?

On Clockjumper, BST refers to British Summer Time (UTC+1), the UK's daylight-saving offset. The same letters are also used locally for Bangladesh Standard Time (UTC+6) — check the city or UTC offset to be sure which is meant.

• BST to GMT
• AEDT to GMT
• BST to CDT
• AEST to GMT
• BST to CET
• CDT to GMT
• BST to CST
• CET to GMT
• BST to EDT
• CST to GMT
• BST to EST
• EDT to GMT
• BST to HKT
• EST to GMT
• BST to IST

• About GMT (Greenwich Mean Time) →
• About BST (British Summer Time) →
• All timezone conversion pages →
• Research: how daylight saving shifts workday overlap →