Offset
The time difference between Phnom Penh and Shanghai is 1 hour.
Phnom Penh (ICT) is behind Shanghai (CST).
ICT: UTC+7
CST: UTC+8
Neither Phnom Penh nor Shanghai is currently observing daylight saving time.
When to schedule
Business-hours overlap: 9 AM–4 PM in Phnom Penh (10 AM–5 PM in Shanghai).
Both teams are in working hours during this window on weekdays.
Suggested time: 12:00 PM Phnom Penh (1:00 PM Shanghai).
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.
China
- New Year's DayThu, Jan 1
- Chinese New Year (Spring Festival)Tue, Feb 17
- Labour DayFri, May 1
- Dragon Boat FestivalFri, Jun 19
- Mid-Autumn FestivalFri, Sep 25
- National DayThu, Oct 1
About these zones
Phnom Penh uses Indochina Time (ICT). To call Cambodia, dial +855.
Shanghai uses China Standard Time (CST). To call China, dial +86.
Shanghai is approximately 1,700 miles northeast of Phnom Penh.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Phnom Penh | Shanghai | Day |
|---|---|---|
| 12:00 am | 1:00 am | Same day |
| 1:00 am | 2:00 am | Same day |
| 2:00 am | 3:00 am | Same day |
| 3:00 am | 4:00 am | Same day |
| 4:00 am | 5:00 am | Same day |
| 5:00 am | 6:00 am | Same day |
| 6:00 am | 7:00 am | Same day |
| 7:00 am | 8:00 am | Same day |
| 8:00 am | 9:00 am | Same day |
| 9:00 am | 10:00 am | Same day |
| 10:00 am | 11:00 am | Same day |
| 11:00 am | 12:00 pm | Same day |
| 12:00 pm | 1:00 pm | Same day |
| 1:00 pm | 2:00 pm | Same day |
| 2:00 pm | 3:00 pm | Same day |
| 3:00 pm | 4:00 pm | Same day |
| 4:00 pm | 5:00 pm | Same day |
| 5:00 pm | 6:00 pm | Same day |
| 6:00 pm | 7:00 pm | Same day |
| 7:00 pm | 8:00 pm | Same day |
| 8:00 pm | 9:00 pm | Same day |
| 9:00 pm | 10:00 pm | Same day |
| 10:00 pm | 11:00 pm | Same day |
| 11:00 pm | 12:00 am | +1 day |
Daylight saving time
Neither Phnom Penh nor Shanghai 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
- 5:51 AM
- Sunset
- 6:09 PM
- Day length
- 12h 18m
- Sunrise
- 5:34 AM
- Sunset
- 6:14 PM
- Day length
- 12h 40m
Daylight overlap: 11h 23m — 5:51 AM–5:14 PM in Phnom Penh (6:51 AM–6:14 PM in Shanghai). Both locations are in daylight during this window.
Cities in these zones
Other cities in China Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Indochina Time
- KTI
Airports in China Standard Time
- PVG
- SHA
- PEK
- PKX
- SZX
- CAN
- FUO
- CTU
- TFU
- TSN
Related conversions
Common conversions
- What is 9:00 am Phnom Penh in Shanghai?
- 9:00 am Phnom Penh is 10:00 am Shanghai.
- What is 12:00 pm Phnom Penh in Shanghai?
- 12:00 pm Phnom Penh is 1:00 pm Shanghai.
- What is 12:30 pm Phnom Penh in Shanghai?
- 12:30 pm Phnom Penh is 1:30 pm Shanghai.
- What is 2:00 pm Phnom Penh in Shanghai?
- 2:00 pm Phnom Penh is 3:00 pm Shanghai.
- What is 5:00 pm Phnom Penh in Shanghai?
- 5:00 pm Phnom Penh is 6:00 pm Shanghai.
- What is 11:30 pm Phnom Penh in Shanghai?
- 11:30 pm Phnom Penh is 12:30 am Shanghai, the next day.