Offset
The time difference between Adelaide and Johannesburg is 7.5 hours.
Adelaide (ACST) is ahead of Johannesburg (SAST).
ACST: UTC+9:30
SAST: UTC+2
Neither Adelaide nor Johannesburg is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Adelaide and Johannesburg don't overlap on the same weekday. Johannesburg is 7 hours behind Adelaide.
With some flexibility, there’s a workable window outside standard hours:
- 3 PM–8 PM in Adelaide (7 AM–12 PM in Johannesburg) — suggest 5:00 PM Adelaide (9:30 AM Johannesburg).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Australia
- New Year's DayThu, Jan 1
- Australia DayMon, Jan 26
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
South Africa
- New Year's DayThu, Jan 1
- Human Rights DaySat, Mar 21
- Good FridayFri, Apr 3
- Family DayMon, Apr 6
- Freedom DayMon, Apr 27
- Workers' DayFri, May 1
- Youth DayTue, Jun 16
- National Women's DayMon, Aug 10
- Heritage DayThu, Sep 24
- Day of ReconciliationWed, Dec 16
- Christmas DayFri, Dec 25
- Day of GoodwillSat, Dec 26
About these zones
Adelaide uses Australian Central Time (ACST, or ACDT). To call Australia, dial +61.
Johannesburg uses South Africa Time (SAST). To call South Africa, dial +27.
Johannesburg is approximately 6,250 miles southwest of Adelaide.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Adelaide | Johannesburg | Day |
|---|---|---|
| 12:00 am | 4:30 pm | -1 day |
| 1:00 am | 5:30 pm | -1 day |
| 2:00 am | 6:30 pm | -1 day |
| 3:00 am | 7:30 pm | -1 day |
| 4:00 am | 8:30 pm | -1 day |
| 5:00 am | 9:30 pm | -1 day |
| 6:00 am | 10:30 pm | -1 day |
| 7:00 am | 11:30 pm | -1 day |
| 8:00 am | 12:30 am | Same day |
| 9:00 am | 1:30 am | Same day |
| 10:00 am | 2:30 am | Same day |
| 11:00 am | 3:30 am | Same day |
| 12:00 pm | 4:30 am | Same day |
| 1:00 pm | 5:30 am | Same day |
| 2:00 pm | 6:30 am | Same day |
| 3:00 pm | 7:30 am | Same day |
| 4:00 pm | 8:30 am | Same day |
| 5:00 pm | 9:30 am | Same day |
| 6:00 pm | 10:30 am | Same day |
| 7:00 pm | 11:30 am | Same day |
| 8:00 pm | 12:30 pm | Same day |
| 9:00 pm | 1:30 pm | Same day |
| 10:00 pm | 2:30 pm | Same day |
| 11:00 pm | 3:30 pm | Same day |
Daylight saving time
Adelaide observes daylight saving time; Johannesburg does not. The offset between the two zones changes when Adelaide transitions: on Sunday, October 4, 2026, clocks spring forward from ACST to ACDT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:19 AM
- Sunset
- 5:12 PM
- Day length
- 9h 53m
- Sunrise
- 6:51 AM
- Sunset
- 5:24 PM
- Day length
- 10h 33m
Daylight overlap: 2h 50m — 2:21 PM–5:12 PM in Adelaide (6:51 AM–9:42 AM in Johannesburg). Both locations are in daylight during this window.
Cities in these zones
Other cities in South Africa Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Australian Central Time
- ADL
Airports in South Africa Time
- HLA
- JNB
- CPT
- DUR
Related conversions
Common conversions
- What is 9:00 am Adelaide in Johannesburg?
- 9:00 am Adelaide is 1:30 am Johannesburg.
- What is 12:00 pm Adelaide in Johannesburg?
- 12:00 pm Adelaide is 4:30 am Johannesburg.
- What is 12:30 pm Adelaide in Johannesburg?
- 12:30 pm Adelaide is 5:00 am Johannesburg.
- What is 2:00 pm Adelaide in Johannesburg?
- 2:00 pm Adelaide is 6:30 am Johannesburg.
- What is 5:00 pm Adelaide in Johannesburg?
- 5:00 pm Adelaide is 9:30 am Johannesburg.
- What is 11:30 pm Adelaide in Johannesburg?
- 11:30 pm Adelaide is 4:00 pm Johannesburg.