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

GMT is currently 1 hour behind 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.

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).

Around January GMT is the same time as BST. Around July it is 1 hour behind BST. 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 GMT ahead of or behind BST right now?

GMT is currently 1 hour behind BST.

What is the current BST to GMT time difference?

Right now the gap is 1 hour — GMT is 1 hour behind BST.

Does the BST → GMT offset change during the year?

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

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).

Does GMT observe daylight saving time?

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

What time is 3 AM BST in GMT?

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

What time is 8 AM BST in GMT?

8:00 AM BST is 7:00 AM GMT.

What time is 9 AM BST in GMT?

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

What time is 10 AM BST in GMT?

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

What time is 11 AM BST in GMT?

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

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

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

What time is 2 PM BST in GMT?

2:00 PM BST is 1:00 PM GMT.

What time is 3 PM BST in GMT?

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

What time is 4 PM BST in GMT?

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

What time is 5 PM BST in GMT?

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

What time is 9 PM BST in GMT?

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

What time is 10 PM BST in GMT?

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

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

The working-hours overlap (09:00–17:00 in both zones) runs roughly 10:00 AM – 5:00 PM BST (≈ 7 hours). The midpoint of that window — 1:30 PM BST, 12:30 PM GMT — is the safest single slot to propose for a live call.

What time zone does BST refer to?

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

What time zone does GMT refer to?

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

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.

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).

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

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