Cao Bang keeps UTC+7 all year. There is no daylight saving time, so the clock never changes.
Cao Bang and your time
Cao Bang at a glance
| Country | Vietnam |
|---|---|
| Region | Cao Bằng Province |
| Time zone | Asia/Ho_Chi_Minh |
| UTC offset now | UTC+7 |
| Daylight saving time | Not observed |
| Coordinates | 22.67° N, 106.26° E |
Cao Bang time zone and clock changes
The clocks in Cao Bang follow Asia/Ho_Chi_Minh and keep UTC+7 through every season. No daylight saving time has been recorded here since 1970.
All of Vietnam keeps the same time, so Cao Bang reads the same clock as Hanoi.
Clock changes in Cao Bang, 2026 and 2027
No clock changes are scheduled in Cao Bang for 2026 or 2027.
Time difference between Cao Bang and other cities
Take 9:00 AM in Cao Bang: the clock reads 9:00 PM (previous day) in New York, 1:00 PM in Sydney and 6:00 PM (previous day) in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 12 h behind | 12 h behind | 11 h behind | None |
| Los Angeles (United States) | --:-- | 15 h behind | 15 h behind | 14 h behind | None |
| London (United Kingdom) | --:-- | 7 h behind | 7 h behind | 6 h behind | 1 h |
| Paris (France) | --:-- | 6 h behind | 6 h behind | 5 h behind | 2 h |
| Dubai (United Arab Emirates) | --:-- | 3 h behind | 3 h behind | 3 h behind | 5 h |
| Mumbai (India) | --:-- | 1 h 30 min behind | 1 h 30 min behind | 1 h 30 min behind | 6 h 30 min |
| Singapore | --:-- | 1 h ahead | 1 h ahead | 1 h ahead | 7 h |
| Tokyo (Japan) | --:-- | 2 h ahead | 2 h ahead | 2 h ahead | 6 h |
| Sydney (Australia) | --:-- | 4 h ahead | 4 h ahead | 3 h ahead | 4 h |
| UTC | --:-- | 7 h behind | 7 h behind | 7 h behind | 1 h |
Because Cao Bang 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 and sunset in Cao Bang
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Close to the equator, days in Cao Bang last between 10 hours 45 minutes and 13 hours 32 minutes, so evenings get dark at about the same time all year.
Daylight through the year in Cao Bang
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 5:59 AM | 6:06 PM | 12 h 7 min |
| June solstice | June 21 | 5:11 AM | 6:43 PM | 13 h 32 min |
| September equinox | September 23 | 5:44 AM | 5:51 PM | 12 h 7 min |
| December solstice | December 22 | 6:31 AM | 5:16 PM | 10 h 45 min |
When the sun is highest in Cao Bang
Cao Bang lies close to the centre of its time zone, so the sun is highest at about 11:55 AM on standard time, close to clock noon.
Places close to Cao Bang
Distance is not the same as time: Pingxiang (China) lies just 81 km (51 mi) away, yet its clock is 1 hour ahead of Cao Bang.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Pingxiang (China) | 81 km (51 mi) | --:-- | 1 h ahead |
| Lang Son | 104 km (65 mi) | --:-- | Same time |
| Chongzuo (China) | 118 km (74 mi) | --:-- | 1 h ahead |
| Thai Nguyen | 126 km (79 mi) | --:-- | Same time |
| Đại Từ | 131 km (82 mi) | --:-- | Same time |
| Hà Giang | 132 km (82 mi) | --:-- | Same time |
| Baise (China) | 141 km (88 mi) | --:-- | 1 h ahead |
| Tuyen Quang | 142 km (89 mi) | --:-- | Same time |
More cities in Vietnam
All time zones and cities in Vietnam
Tools for time in Cao Bang
- Convert a time to or from Cao Bang: pick a date and time and see it in every city on your list.
- Add Cao Bang to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Cao Bang and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Cao Bang in?
Cao Bang uses the Asia/Ho_Chi_Minh time zone, which is UTC+7 all year.
Does Cao Bang use daylight saving time?
No. Cao Bang stays on UTC+7 all year, so the time difference to places without daylight saving time never changes.
What is the time difference between Cao Bang and New York?
Cao Bang is 12 hours ahead of New York in January and 11 hours ahead of New York in July, because New York moves its clocks for daylight saving time and Cao Bang does not.
Is Cao Bang on the same time as Hanoi?
Yes. Cao Bang and Hanoi both use UTC+7 right now.
How long is the longest day in Cao Bang?
About 13 hours 32 minutes, around the June solstice. The shortest day, around the December solstice, has about 10 hours 45 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.