London
Greenwich Mean Time
Johannesburg
South Africa Standard Time
The exact hour gap shifts with DST — dial it in below.
Greenwich Mean Time (London) and South Africa Standard Time (Johannesburg). This page opens with 10PM GMT preset—shift the calendar, compare tables, and copy a link your team can reopen anytime.
See current time in London (GMT) and Johannesburg (SAST) with active DST rules before you dial in the deadline date.
The workspace opens with 10PM GMT preset—pick the actual calendar date, read day-shift warnings, and business-hours badges in Johannesburg.
Copy a shareable URL, scan the 24-hour table below, or jump to related deadline routes for the same zone pair.
London
Greenwich Mean Time
Johannesburg
South Africa Standard Time
The exact hour gap shifts with DST — dial it in below.
Searching "10pm GMT to SAST"? When a colleague says "10pm GMT" they mean 10pm in Greenwich Mean Time (London). In South Africa Standard Time (Johannesburg) that's approximately 12 AM SAST on the +1 day.
London is currently 2 hours behind Johannesburg. Because Daylight Saving Time affects this pair, the exact converted time may shift by an hour during DST transition windows — the converter below accounts for the deadline date you choose. For other times between these zones see the 24-hour table further down, or jump to the full GMT → SAST converter. Open the full GMT → SAST converter.
time and date the client gave you
Swap the direction any time if you are checking from your side.
Every civil hour today from London (GMT) translated into Johannesburg (SAST). Compare any slot to your preset (10PM GMT); day badges mark midnight crossings and times follow your browser’s IANA database.
Hourly wall-clock map for today — midnight crossings show as day shifts.
Five typical office times (morning through early evening) as a quick sanity check. Dial exact dates and share links in the deadline workspace above.
Shortcut rows for typical meeting hours — see the full 24-hour grid above.
DST behaviour, sharing preset deadlines, and how to read business-hours badges in the target city.
See the live converter above — it calculates the exact SAST time corresponding to 10pm GMT, including any day shift and DST effects.
Other preset times for this pair, nearby deadline routes, city clocks, meeting overlap, and index pages—picked for this route so you can move on without searching.