GMT to BST Converter

BST is 1h 0m ahead of GMT. When it's 12:00 PM GMT, it's 1:00 PM BST.

From

GMT · UTC

4:09:48AM

Greenwich Mean Time

e.g. London

To

BST · UTC+1

5:09:48AM

British Summer Time

e.g. London, Dublin

Open in World ClockBST → GMT
9:00 AM GMT=10:00 AM BST
12:00 PM GMT=1:00 PM BST
5:00 PM GMT=6:00 PM BST

Hourly conversion (GMT → BST)

GMTBST
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)

Shaded rows are within standard working hours (8am–6pm) on both sides.

GMT (UTC+0) equals UTC. The UK uses BST (UTC+1) in summer.

BST here is British Summer Time (UTC+1); in winter the UK uses GMT (UTC+0). BST can also mean Bangladesh Standard Time (UTC+6).

More GMT conversions

Frequently asked questions

What is the time difference between GMT and BST?
BST is 1h 0m ahead of GMT. GMT is UTC and BST is UTC+1.
What is 12:00 PM GMT in BST?
12:00 PM GMT is 1:00 PM BST.
Does GMT change for daylight saving time?
GMT (UTC+0) equals UTC. The UK uses BST (UTC+1) in summer.