Offset
The time difference between Shanghai and Chattogram is 2 hours.
Shanghai (CST) is ahead of Chattogram (BST).
CST: UTC+8
BST: UTC+6
Neither Shanghai nor Chattogram is currently observing daylight saving time.
When to schedule
Business-hours overlap: 11 AM–5 PM in Shanghai (9 AM–3 PM in Chattogram).
Both teams are in working hours during this window on weekdays.
Suggested time: 2:00 PM Shanghai (12:00 PM Chattogram).
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
Bangladesh
- International Mother Language DaySat, Feb 21
- Independence and National DayThu, Mar 26
- Bengali New YearTue, Apr 14
- Labour DayFri, May 1
- July Mass Uprising DayWed, Aug 5
- Victory DayWed, Dec 16
- Christmas DayFri, Dec 25
About these zones
Shanghai uses China Standard Time (CST). To call China, dial +86.
Chattogram uses Bangladesh Standard Time (BST). To call Bangladesh, dial +880.
Chattogram is approximately 1,900 miles west of Shanghai.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Shanghai | Chattogram | Day |
|---|---|---|
| 12:00 am | 10:00 pm | -1 day |
| 1:00 am | 11:00 pm | -1 day |
| 2:00 am | 12:00 am | Same day |
| 3:00 am | 1:00 am | Same day |
| 4:00 am | 2:00 am | Same day |
| 5:00 am | 3:00 am | Same day |
| 6:00 am | 4:00 am | Same day |
| 7:00 am | 5:00 am | Same day |
| 8:00 am | 6:00 am | Same day |
| 9:00 am | 7:00 am | Same day |
| 10:00 am | 8:00 am | Same day |
| 11:00 am | 9:00 am | Same day |
| 12:00 pm | 10:00 am | Same day |
| 1:00 pm | 11:00 am | Same day |
| 2:00 pm | 12:00 pm | Same day |
| 3:00 pm | 1:00 pm | Same day |
| 4:00 pm | 2:00 pm | Same day |
| 5:00 pm | 3:00 pm | Same day |
| 6:00 pm | 4:00 pm | Same day |
| 7:00 pm | 5:00 pm | Same day |
| 8:00 pm | 6:00 pm | Same day |
| 9:00 pm | 7:00 pm | Same day |
| 10:00 pm | 8:00 pm | Same day |
| 11:00 pm | 9:00 pm | Same day |
Daylight saving time
Neither Shanghai nor Chattogram 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
- 5:04 AM
- Sunset
- 6:58 PM
- Day length
- 13h 54m
- Sunrise
- 5:20 AM
- Sunset
- 6:39 PM
- Day length
- 13h 19m
Daylight overlap: 11h 38m — 7:20 AM–6:58 PM in Shanghai (5:20 AM–4:58 PM in Chattogram). 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 China Standard Time
- PVG
- SHA
- PEK
- PKX
- SZX
- CAN
- FUO
- CTU
- TFU
- TSN
Airports in Bangladesh Standard Time
- DAC
- CGP
- JSR
Related conversions
Common conversions
- What is 9:00 am Shanghai in Chattogram?
- 9:00 am Shanghai is 7:00 am Chattogram.
- What is 12:00 pm Shanghai in Chattogram?
- 12:00 pm Shanghai is 10:00 am Chattogram.
- What is 12:30 pm Shanghai in Chattogram?
- 12:30 pm Shanghai is 10:30 am Chattogram.
- What is 2:00 pm Shanghai in Chattogram?
- 2:00 pm Shanghai is 12:00 pm Chattogram.
- What is 5:00 pm Shanghai in Chattogram?
- 5:00 pm Shanghai is 3:00 pm Chattogram.
- What is 11:30 pm Shanghai in Chattogram?
- 11:30 pm Shanghai is 9:30 pm Chattogram.