Changzhou keeps UTC+8 (CST) all year. There is no daylight saving time, so the clock never changes.
Changzhou and your time
Changzhou at a glance
| Country | China |
|---|---|
| Region | Jiangsu |
| Time zone | Asia/Shanghai |
| Abbreviation now | CST |
| UTC offset now | UTC+8 |
| Daylight saving time | Not observed since 1991 |
| Coordinates | 31.77° N, 119.95° E |
Which time zone Changzhou uses
Changzhou follows the Asia/Shanghai time zone and stays on UTC+8 all year. Clocks here last changed for daylight saving time in 1991; the tz database lists no change after that.
China spans 2 offsets. Changzhou shares its time with the capital, Beijing.
Clock changes in Changzhou, 2026 and 2027
No clock changes are scheduled in Changzhou for 2026 or 2027.
Changzhou time compared with major cities
When it is 9:00 AM in Changzhou, it is 8:00 PM (previous day) in New York, 12:00 PM in Sydney and 5:00 PM (previous day) in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 13 h behind | 13 h behind | 12 h behind | None |
| Los Angeles (United States) | --:-- | 16 h behind | 16 h behind | 15 h behind | None |
| London (United Kingdom) | --:-- | 8 h behind | 8 h behind | 7 h behind | None |
| Paris (France) | --:-- | 7 h behind | 7 h behind | 6 h behind | 1 h |
| Dubai (United Arab Emirates) | --:-- | 4 h behind | 4 h behind | 4 h behind | 4 h |
| Mumbai (India) | --:-- | 2 h 30 min behind | 2 h 30 min behind | 2 h 30 min behind | 5 h 30 min |
| Singapore | --:-- | Same time | Same time | Same time | 8 h |
| Tokyo (Japan) | --:-- | 1 h ahead | 1 h ahead | 1 h ahead | 7 h |
| Sydney (Australia) | --:-- | 3 h ahead | 3 h ahead | 2 h ahead | 5 h |
| UTC | --:-- | 8 h behind | 8 h behind | 8 h behind | None |
Because Changzhou keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours is the part of a 9 AM to 5 PM local working day that both cities have in common. Weekends are not taken into account.
Sunrise, sunset and day length in Changzhou
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
The earliest sunrise in Changzhou is at 4:54 AM on June 11, and the latest sunset at 7:10 PM on June 30.
Daylight through the year in Changzhou
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:05 AM | 6:11 PM | 12 h 7 min |
| June solstice | June 21 | 4:55 AM | 7:09 PM | 14 h 14 min |
| September equinox | September 23 | 5:49 AM | 5:56 PM | 12 h 7 min |
| December solstice | December 22 | 6:56 AM | 5:01 PM | 10 h 4 min |
When the sun is highest in Changzhou
Clock time and sun time line up fairly well in Changzhou: solar noon falls at about 12:00 PM on standard time.
Cities near Changzhou
Every city below shares Changzhou’s clock.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Jiangyin | 33 km (20 mi) | --:-- | Same time |
| Wuxi | 39 km (24 mi) | --:-- | Same time |
| Yixing | 48 km (30 mi) | --:-- | Same time |
| Zhangjiagang | 56 km (35 mi) | --:-- | Same time |
| Zhenjiang | 68 km (42 mi) | --:-- | Same time |
| Changshu | 76 km (47 mi) | --:-- | Same time |
| Taizhou | 80 km (50 mi) | --:-- | Same time |
| Suzhou | 80 km (50 mi) | --:-- | Same time |
More cities in China
All time zones and cities in China
Plan around the time in Changzhou
- Convert a time to or from Changzhou: pick a date and time and see it in every city on your list.
- Add Changzhou to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Changzhou and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Changzhou in?
Changzhou uses the Asia/Shanghai time zone, which is UTC+8 (CST) all year.
Does Changzhou use daylight saving time?
Not any more. Changzhou last changed its clocks for daylight saving time in 1991 and now stays on UTC+8 all year.
What is the time difference between Changzhou and New York?
Changzhou is 13 hours ahead of New York in January and 12 hours ahead of New York in July, because New York moves its clocks for daylight saving time and Changzhou does not.
Is Changzhou on the same time as Beijing?
Yes. Changzhou and Beijing both use UTC+8 right now.
How long is the longest day in Changzhou?
About 14 hours 14 minutes, around the June solstice. The shortest day, around the December solstice, has about 10 hours 4 minutes of daylight.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.