Quarter to Twelve

Time in GMT and BST

The time difference between Greenwich Mean Time (GMT) and British Summer Time (BST) is 1 hour. British Summer Time is 1 hour ahead of Greenwich Mean Time.

Greenwich Mean Time

  • The current local time in GMT is 5:01 am (April 20, 2024)
  • GMT time zone offset is UTC+00:00

British Summer Time

  • The current local time in BST is 6:01 am (April 20, 2024)
  • BST time zone offset is UTC+01:00

How to convert Greenwich Mean Time to British Summer Time?

Add 1 hour to Greenwich Mean Time to get British Summer Time.

Time in GMT

00:00

Time in BST

00:00

Use the slider above to convert Greenwich Mean Time to British Summer Time and view the day and night map at different times.

Day–night colors on the map:
Day colors Day
Civil twilight colors Civil twilight
Nautical twilight colors Nautical twilight
Astronomical twilight colors Astronomical twilight
Night colors Night

Time Conversion Chart

GMTBST
12am1am
1am2am
2am3am
3am4am
4am5am
5am6am
6am7am
7am8am
8am9am
9am10am
10am11am
11am12pm
12pm1pm
1pm2pm
2pm3pm
3pm4pm
4pm5pm
5pm6pm
6pm7pm
7pm8pm
8pm9pm
9pm10pm
10pm11pm
11pm12am