Johannesburg
London
Convert SAST to GMT
South Africa Standard Time to Greenwich Mean Time — London is 1 hour behind Johannesburg
Quick Facts
Time Difference
-1 hours
SAST Full Name
South Africa Standard Time
GMT Full Name
Greenwich Mean Time
SAST to GMT Conversion Table
Related Conversions
About SAST and GMT Time Zones
SAST (South Africa Standard Time) is UTC+2 and covers cities like Johannesburg, Cape Town, Durban. GMT (Greenwich Mean Time) is UTC+0 and covers cities like London, Dublin, Lisbon.
When it's 12:00 PM (noon) in Johannesburg (SAST), it's 11:00 AM in London (GMT). The time difference between SAST and GMT is 1 hour — London is behind Johannesburg.
With only a 2-hour difference, Johannesburg and London share nearly a full business day overlap, making scheduling straightforward.
Use our world clock tool to compare Johannesburg and London with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between SAST and GMT?
London (GMT) is 1 hour behind Johannesburg (SAST). The offset is -1 hours.
Is GMT ahead or behind SAST?
GMT is 1 hour behind SAST. SAST is UTC+2 and GMT is UTC+1.
When it's 12:00 PM in Johannesburg, what time is it in London?
When it's 12:00 PM (noon) in Johannesburg (SAST), it's 11:00 AM in London (GMT).
When it's 5:00 PM in Johannesburg, what time is it in London?
When it's 5:00 PM in Johannesburg (SAST), it's 4:00 PM in London (GMT).