Offset
The time difference between Japan Standard Time and South Africa Time is 7 hours.
Japan Standard Time (JST) is ahead of South Africa Time (SAST).
JST: UTC+9
SAST: UTC+2
Neither Japan Standard Time nor South Africa Time is currently observing daylight saving time.
When to schedule
Business-hours overlap: 4 PM–5 PM in Japan Standard Time (9 AM–10 AM in South Africa Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 4:00 PM Japan Standard Time (9:00 AM South Africa 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.
Japan
- New Year's DayThu, Jan 1
- Coming of Age DayMon, Jan 12
- Foundation DayWed, Feb 11
- The Emperor's BirthdayMon, Feb 23
- Vernal Equinox DayFri, Mar 20
- Shōwa DayWed, Apr 29
- Constitution Memorial DayWed, May 6
- Greenery DayMon, May 4
- Children's DayTue, May 5
- Marine DayMon, Jul 20
- Mountain DayTue, Aug 11
- Respect for the Aged DayMon, Sep 21
- Autumnal Equinox DayWed, Sep 23
- Sports DayMon, Oct 12
- Culture DayTue, Nov 3
- Labour Thanksgiving DayMon, Nov 23
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
Japan Standard Time is also known as JST. To call Japan, dial +81.
South Africa Time is also known as SAST. To call South Africa, dial +27.
South Africa Time is approximately 8,400 miles west of Japan Standard Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| JST | SAST | Day |
|---|---|---|
| 12:00 am | 5:00 pm | -1 day |
| 1:00 am | 6:00 pm | -1 day |
| 2:00 am | 7:00 pm | -1 day |
| 3:00 am | 8:00 pm | -1 day |
| 4:00 am | 9:00 pm | -1 day |
| 5:00 am | 10:00 pm | -1 day |
| 6:00 am | 11:00 pm | -1 day |
| 7:00 am | 12:00 am | Same day |
| 8:00 am | 1:00 am | Same day |
| 9:00 am | 2:00 am | Same day |
| 10:00 am | 3:00 am | Same day |
| 11:00 am | 4:00 am | Same day |
| 12:00 pm | 5:00 am | Same day |
| 1:00 pm | 6:00 am | Same day |
| 2:00 pm | 7:00 am | Same day |
| 3:00 pm | 8:00 am | Same day |
| 4:00 pm | 9:00 am | Same day |
| 5:00 pm | 10:00 am | Same day |
| 6:00 pm | 11:00 am | Same day |
| 7:00 pm | 12:00 pm | Same day |
| 8:00 pm | 1:00 pm | Same day |
| 9:00 pm | 2:00 pm | Same day |
| 10:00 pm | 3:00 pm | Same day |
| 11:00 pm | 4:00 pm | Same day |
Daylight saving time
Neither Japan Standard Time nor South Africa Time observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 4:27 AM
- Sunset
- 6:55 PM
- Day length
- 14h 28m
- Sunrise
- 6:50 AM
- Sunset
- 5:24 PM
- Day length
- 10h 34m
Daylight overlap: 5h 4m — 1:50 PM–6:55 PM in Japan Standard Time (6:50 AM–11:55 AM in South Africa Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Japan Standard Time
Cities in South Africa Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Japan Standard Time
- HND
- NRT
- ITM
- KIX
- UKB
- NGO
- NKM
- CTS
- OKD
- FUK
Airports in South Africa Time
- HLA
- JNB
- CPT
- DUR
Related conversions
Common conversions
- What is 9:00 am JST in SAST?
- 9:00 am JST is 2:00 am SAST.
- What is 12:00 pm JST in SAST?
- 12:00 pm JST is 5:00 am SAST.
- What is 12:30 pm JST in SAST?
- 12:30 pm JST is 5:30 am SAST.
- What is 2:00 pm JST in SAST?
- 2:00 pm JST is 7:00 am SAST.
- What is 5:00 pm JST in SAST?
- 5:00 pm JST is 10:00 am SAST.
- What is 11:30 pm JST in SAST?
- 11:30 pm JST is 4:30 pm SAST.