Offset
The time difference between Hanoi and Johannesburg is 5 hours.
Hanoi (ICT) is ahead of Johannesburg (SAST).
ICT: UTC+7
SAST: UTC+2
Neither Hanoi nor Johannesburg is currently observing daylight saving time.
When to schedule
Business-hours overlap: 2 PM–5 PM in Hanoi (9 AM–12 PM in Johannesburg).
Both teams are in working hours during this window on weekdays.
Suggested time: 3:00 PM Hanoi (10:00 AM Johannesburg).
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.
Vietnam
- New Year's DayThu, Jan 1
- Reunification DayThu, Apr 30
- Labour DayFri, May 1
- National DayWed, Sep 2
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
Hanoi uses Indochina Time (ICT). To call Vietnam, dial +84.
Johannesburg uses South Africa Time (SAST). To call South Africa, dial +27.
Johannesburg is approximately 6,150 miles southwest of Hanoi.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Hanoi | Johannesburg | Day |
|---|---|---|
| 12:00 am | 7:00 pm | -1 day |
| 1:00 am | 8:00 pm | -1 day |
| 2:00 am | 9:00 pm | -1 day |
| 3:00 am | 10:00 pm | -1 day |
| 4:00 am | 11:00 pm | -1 day |
| 5:00 am | 12:00 am | Same day |
| 6:00 am | 1:00 am | Same day |
| 7:00 am | 2:00 am | Same day |
| 8:00 am | 3:00 am | Same day |
| 9:00 am | 4:00 am | Same day |
| 10:00 am | 5:00 am | Same day |
| 11:00 am | 6:00 am | Same day |
| 12:00 pm | 7:00 am | Same day |
| 1:00 pm | 8:00 am | Same day |
| 2:00 pm | 9:00 am | Same day |
| 3:00 pm | 10:00 am | Same day |
| 4:00 pm | 11:00 am | Same day |
| 5:00 pm | 12:00 pm | Same day |
| 6:00 pm | 1:00 pm | Same day |
| 7:00 pm | 2:00 pm | Same day |
| 8:00 pm | 3:00 pm | Same day |
| 9:00 pm | 4:00 pm | Same day |
| 10:00 pm | 5:00 pm | Same day |
| 11:00 pm | 6:00 pm | Same day |
Daylight saving time
Neither Hanoi nor Johannesburg 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
- 5:15 AM
- Sunset
- 6:38 PM
- Day length
- 13h 22m
- Sunrise
- 6:51 AM
- Sunset
- 5:24 PM
- Day length
- 10h 33m
Daylight overlap: 6h 46m — 11:51 AM–6:38 PM in Hanoi (6:51 AM–1:38 PM in Johannesburg). Both locations are in daylight during this window.
Cities in these zones
Other cities in Indochina Time
Other cities in South Africa Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Indochina Time
- HAN
- BKK
- DMK
- HPH
Airports in South Africa Time
- HLA
- JNB
- CPT
- DUR
Related conversions
Common conversions
- What is 9:00 am Hanoi in Johannesburg?
- 9:00 am Hanoi is 4:00 am Johannesburg.
- What is 12:00 pm Hanoi in Johannesburg?
- 12:00 pm Hanoi is 7:00 am Johannesburg.
- What is 12:30 pm Hanoi in Johannesburg?
- 12:30 pm Hanoi is 7:30 am Johannesburg.
- What is 2:00 pm Hanoi in Johannesburg?
- 2:00 pm Hanoi is 9:00 am Johannesburg.
- What is 5:00 pm Hanoi in Johannesburg?
- 5:00 pm Hanoi is 12:00 pm Johannesburg.
- What is 11:30 pm Hanoi in Johannesburg?
- 11:30 pm Hanoi is 6:30 pm Johannesburg.