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Convert Greenwich Mean Time to South Africa Time

GMT · UTC+1 → SAST · UTC+2

GMT is 1 hour behind SAST

London · BST

Tuesday, 8 September 2026

Johannesburg · SAST

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
LondonBST · +01:00
0003060912151821
JohannesburgSAST · +02:00
0104071013161922

Shared working hours: 09:00–17:00 in London is 10:00–18:00 in Johannesburg.

Working (09–18) Awake, off the clock Asleep (23–07)

Pick a time and share it

08:05 Tue 8 Sep London = 09:05 Tue 8 Sep Johannesburg

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Hour-by-hour conversion

London (GMT)Johannesburg (SAST)
00:0001:00
01:0002:00
02:0003:00
03:0004:00
04:0005:00
05:0006:00
06:0007:00
07:0008:00
08:0009:00Now
09:0010:00Both at work
10:0011:00Both at work
11:0012:00Both at work
12:0013:00Both at work
13:0014:00Both at work
14:0015:00Both at work
15:0016:00Both at work
16:0017:00Both at work
17:0018:00
18:0019:00
19:0020:00
20:0021:00
21:0022:00
22:0023:00
23:0000:00next day

About this conversion

GMT here means Greenwich Mean Time, represented by London (Europe/London), currently UTC+1. SAST means South Africa Time, represented by Johannesburg (Africa/Johannesburg), currently UTC+2.

GMT is used by 22 zones, including United Kingdom. If you meant a different one, see every meaning of GMT.

SAST is used by 3 zones, including South Africa. See every meaning of SAST.

Working hours are shown as 09:00–18:00 local, and sleeping hours as 23:00–07:00. The hour table is anchored on the current day in London; day boundaries are marked where the date differs.

Quick answers

  • 09:00 GMT is 10:00 SAST
  • 12:00 GMT is 13:00 SAST
  • 15:00 GMT is 16:00 SAST
  • 18:00 GMT is 19:00 SAST

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