Offset
The time difference between Australian Central Time and South Africa Time is 7.5 hours.
Australian Central Time (ACST) is ahead of South Africa Time (SAST).
ACST: UTC+9:30
SAST: UTC+2
Neither Australian Central Time nor South Africa Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Australian Central Time and South Africa Time don't overlap on the same weekday. South Africa Time is 7 hours behind Australian Central Time.
With some flexibility, there’s a workable window outside standard hours:
- 3 PM–8 PM in Australian Central Time (7 AM–12 PM in South Africa Time) — suggest 5:00 PM Australian Central Time (9:30 AM South Africa Time).
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
Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.
South Africa Time is also known as SAST. To call South Africa, dial +27.
South Africa Time is approximately 6,250 miles southwest of Australian Central Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| ACST | SAST | 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
Australian Central Time observes daylight saving time; South Africa Time does not. The offset between the two zones changes when Australian Central Time 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
- 7:18 AM
- Sunset
- 5:12 PM
- Day length
- 9h 55m
- Sunrise
- 6:50 AM
- Sunset
- 5:24 PM
- Day length
- 10h 34m
Daylight overlap: 2h 52m — 2:20 PM–5:12 PM in Australian Central Time (6:50 AM–9:42 AM in South Africa Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Australian Central Time
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 ACST in SAST?
- 9:00 am ACST is 1:30 am SAST.
- What is 12:00 pm ACST in SAST?
- 12:00 pm ACST is 4:30 am SAST.
- What is 12:30 pm ACST in SAST?
- 12:30 pm ACST is 5:00 am SAST.
- What is 2:00 pm ACST in SAST?
- 2:00 pm ACST is 6:30 am SAST.
- What is 5:00 pm ACST in SAST?
- 5:00 pm ACST is 9:30 am SAST.
- What is 11:30 pm ACST in SAST?
- 11:30 pm ACST is 4:00 pm SAST.