Slough to Johannesburg time converter

Johannesburg is 1 hour ahead of Slough. When it is 9:00 AM in Slough, it is 10:00 AM in Johannesburg.

Slough BST

Friday, October 16, 2026

Johannesburg SAST

Friday, October 16, 2026

Slough
United Kingdom
Fri, Oct 16
BSTUTC+1
Johannesburg
South Africa
Fri, Oct 16
SASTUTC+2+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Slough to Johannesburg conversion table

Every hour of today in Slough and the matching time in Johannesburg. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

Both sides are at work from 9:00 AM – 5:00 PM in Slough (10:00 AM – 6:00 PM in Johannesburg).

Daylight saving time and the difference

The difference changes during the year because Slough and Johannesburg switch clocks on different dates:

  • Oct 16, 2026 – Oct 25, 2026: +1h
  • Oct 25, 2026 – Mar 28, 2027: +2h
  • Mar 28, 2027 – Oct 16, 2027: +1h

Distance

Slough and Johannesburg are 9,084 km (5,645 miles) apart in a straight line.

More conversions

Johannesburg to SloughSlough to New YorkSlough to LondonSlough to Los AngelesSlough to ChicagoSlough to TorontoSlough to São PauloSlough to ParisSlough to BerlinSlough to MoscowSlough to DubaiSlough to New DelhiSlough to Bangkok
New York to JohannesburgLondon to JohannesburgLos Angeles to JohannesburgChicago to JohannesburgToronto to JohannesburgSão Paulo to JohannesburgParis to JohannesburgBerlin to JohannesburgMoscow to JohannesburgDubai to JohannesburgNew Delhi to JohannesburgBangkok to Johannesburg

Questions and answers

What is the time difference between Slough and Johannesburg?

Johannesburg is 1 hour ahead of Slough.

What time is it in Johannesburg when it is 9 AM in Slough?

When it is 9:00 AM in Slough, it is 10:00 AM in Johannesburg.

When is the best time to call Johannesburg from Slough?

Both sides are at work from 9:00 AM – 5:00 PM in Slough (10:00 AM – 6:00 PM in Johannesburg).

Does the time difference between Slough and Johannesburg change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.