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