GMT to GMT/BST time converter

GMT/BST is 1 hour ahead of GMT. When it is 9:00 AM in GMT, it is 10:00 AM in GMT/BST.

GMT UTC

Friday, October 16, 2026

GMT/BST BST

Friday, October 16, 2026

GMT
Greenwich Mean Time
Fri, Oct 16
UTC
GMT/BST
British Summer Time
Fri, Oct 16
BSTUTC+1+1h
Finding your time zone…
Shared working hours (9:00–18:00)

GMT to GMT/BST conversion table

Every hour of today in GMT and the matching time in GMT/BST. Light rows are typical working hours (9:00–18:00).

GMTGMT/BST
12:00 AM1:00 AM
1:00 AM2:00 AM
2:00 AM3:00 AM
3:00 AM4:00 AM
4:00 AM5:00 AM
5:00 AM6:00 AM
6:00 AM7:00 AM
7:00 AM8:00 AM
8:00 AM9:00 AM
9:00 AM10:00 AM
10:00 AM11:00 AM
11:00 AM12:00 PM
12:00 PM1:00 PM
1:00 PM2:00 PM
2:00 PM3:00 PM
3:00 PM4:00 PM
4:00 PM5:00 PM
5:00 PM6:00 PM
6:00 PM7:00 PM
7:00 PM8:00 PM
8:00 PM9:00 PM
9:00 PM10:00 PM
10:00 PM11:00 PM
11:00 PM12:00 AM+1 day

Best time to call or meet

Both sides are at work from 9:00 AM – 5:00 PM in GMT (10:00 AM – 6:00 PM in GMT/BST).

Daylight saving time and the difference

The difference changes during the year because GMT and GMT/BST switch clocks on different dates:

  • Oct 16, 2026 – Oct 25, 2026: +1h
  • Oct 25, 2026 – Mar 28, 2027: ±0
  • Mar 28, 2027 – Oct 16, 2027: +1h

More conversions

BST to GMTGMT to UTCGMT to ESTGMT to CSTGMT to MSTGMT to PSTGMT to CETGMT to MSKGMT to GSTGMT to PKTGMT to ISTGMT to SGTGMT to PHT
UTC to BSTEST to BSTCST to BSTMST to BSTPST to BSTCET to BSTMSK to BSTGST to BSTPKT to BSTIST to BSTSGT to BSTPHT to BST

Questions and answers

What is the time difference between GMT and GMT/BST?

GMT/BST is 1 hour ahead of GMT.

What time is it in GMT/BST when it is 9 AM in GMT?

When it is 9:00 AM in GMT, it is 10:00 AM in GMT/BST.

When is the best time to call GMT/BST from GMT?

Both sides are at work from 9:00 AM – 5:00 PM in GMT (10:00 AM – 6:00 PM in GMT/BST).

Does the time difference between GMT and GMT/BST change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.