What is SAST in BST?
British Time is 1 hour behind
South Africa Standard Time is on UTC+2:00 and British Time is on UTC+1:00 right now. British Time is on daylight saving, so its clocks read BST. The gap changes during the year — see below.
- Time in Johannesburg
- 4:56 am
- Time in London
- 3:56 am
- Difference
- −1 h
- Next clock change
- October 25, 2026
Convert a time
BST — British Time
3:00 am
Wed
When the difference changes
South Africa Standard Time and British Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – October 25, 2026British Time is 1 hour behind
- October 25, 2026 – March 28, 2027British Time is 2 hours behind
- March 28, 2027 – onwardsBritish Time is 1 hour behind
Periods shorter than a day are not listed: both zones change at 2am in their own local time, so there are a few hours on each transition date when the gap is briefly something else.
Daylight saving
South Africa Standard Time
South Africa Standard Time stays on SAST all year, so its offset from UTC never moves.
British Time
Clocks go back one hour at 2am local time, becoming GMT.
SAST to BST conversion table
Every hour of Wednesday, September 23, 2026, converted from South Africa Standard Time to British Time. 1 of the 24 hours fall on a different calendar day in London, which is marked.
- 12:00 am SAST
- 11:00 pm BST−1 day
- 1:00 am SAST
- 12:00 am BST
- 2:00 am SAST
- 1:00 am BST
- 3:00 am SAST
- 2:00 am BST
- 4:00 am SAST
- 3:00 am BST
- 5:00 am SAST
- 4:00 am BST
- 6:00 am SAST
- 5:00 am BST
- 7:00 am SAST
- 6:00 am BST
- 8:00 am SAST
- 7:00 am BST
- 9:00 am SAST
- 8:00 am BST
- 10:00 am SAST
- 9:00 am BST
- 11:00 am SAST
- 10:00 am BST
- 12:00 pm SAST
- 11:00 am BST
- 1:00 pm SAST
- 12:00 pm BST
- 2:00 pm SAST
- 1:00 pm BST
- 3:00 pm SAST
- 2:00 pm BST
- 4:00 pm SAST
- 3:00 pm BST
- 5:00 pm SAST
- 4:00 pm BST
- 6:00 pm SAST
- 5:00 pm BST
- 7:00 pm SAST
- 6:00 pm BST
- 8:00 pm SAST
- 7:00 pm BST
- 9:00 pm SAST
- 8:00 pm BST
- 10:00 pm SAST
- 9:00 pm BST
- 11:00 pm SAST
- 10:00 pm BST
Scheduling between the two
Working hours overlap from 10:00 am to 6:00 pm SAST, which is 9:00 am to 5:00 pm BST. Anything inside that window falls in the normal working day at both ends.
A note on BST: it can also mean Bangladesh Standard Time (UTC+6). This page means British Summer Time.
British Time (BST) is used in the whole United Kingdom. In winter the UK is on GMT; from late March to late October it is on BST, an hour ahead.