Time zone converter

GMT to SAST

On Oct 23, 2026, South Africa Standard Time is 1 hour ahead of UK time: 9:00 AM BST is 10:00 AM SAST. The gap changes during the year because of daylight saving time; the dates are below.

UK time
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Current time in UK time
South Africa Standard Time
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Current time in South Africa Standard Time
Pick a date and time to convert.

SAST vs GMT over the next 12 months

PeriodSAST isExample
Oct 23, 2026 to Oct 25, 20261 hour ahead9:00 AM BST = 10:00 AM SAST
Oct 25, 2026 to Mar 28, 20272 hours ahead9:00 AM GMT = 11:00 AM SAST
Mar 28, 2027 onwards1 hour ahead9:00 AM BST = 10:00 AM SAST

GMT to SAST conversion table

Every hour of a weekday around Oct 23, 2026, in both zones.

UK timeSouth Africa Standard Time
12:00 AM2:00 AM
1:00 AM3:00 AM
2:00 AM4:00 AM
3:00 AM5:00 AM
4:00 AM6:00 AM
5:00 AM7:00 AM
6:00 AM8:00 AM
7:00 AM9:00 AM
8:00 AM10:00 AM
9:00 AM11:00 AM
10:00 AM12:00 PM
11:00 AM1:00 PM
12:00 PM2:00 PM
1:00 PM3:00 PM
2:00 PM4:00 PM
3:00 PM5:00 PM
4:00 PM6:00 PM
5:00 PM7:00 PM
6:00 PM8:00 PM
7:00 PM9:00 PM
8:00 PM10:00 PM
9:00 PM11:00 PM
10:00 PM12:00 AM (next day)
11:00 PM1:00 AM (next day)

Best time for a meeting

Normal 9-to-5 working hours overlap for 6 hours on a weekday: 9:00 AM–3:00 PM GMT, which is 11:00 AM–5:00 PM SAST.

Comparing more than two places? The meeting planner lines up working hours for up to six cities.

Daylight saving time

UK time (GMT/BST)

  • Oct 25, 2026: clocks go back 1 hour at 2:00 AM (UTC+1 → UTC±0)
  • Mar 28, 2027: clocks go forward 1 hour at 1:00 AM (UTC±0 → UTC+1)

Where these clocks are used

  • UK time (GMT/BST): London, Edinburgh, Dublin and Lisbon keep the same clock. IANA zone Europe/London.
  • South Africa Standard Time (SAST): Johannesburg, Cape Town. IANA zone Africa/Johannesburg.

Questions

What time is it in SAST when it is 9 AM GMT?

On Oct 23, 2026, 9:00 AM BST is 10:00 AM SAST. On other dates the answer can shift by an hour because of daylight saving time; the table of periods on this page gives each one.

How many hours ahead of GMT is SAST?

It depends on the date. Oct 23, 2026 to Oct 25, 2026: SAST is 1 hour ahead. Oct 25, 2026 to Mar 28, 2027: SAST is 2 hours ahead. Mar 28, 2027 onwards: SAST is 1 hour ahead.

Do GMT and SAST observe daylight saving time?

UK time switches to BST (UTC+1) in summer and back to GMT (UTC±0) in winter. South Africa Standard Time stays on UTC+2 all year.

What is the best time for a meeting between GMT and SAST?

Normal 9-to-5 working hours overlap for 6 hours on a weekday: 9:00 AM–3:00 PM GMT, which is 11:00 AM–5:00 PM SAST.

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Related conversions

Computed from the IANA time zone database on Oct 23, 2026. Live clocks and the converter use your browser's copy of the same data.