Mengzi runs on UTC+8 (CST) every day of the year, with no daylight saving time.
Mengzi and your time
Mengzi at a glance
| Country | China |
|---|---|
| Region | Yunnan |
| Time zone | Asia/Shanghai |
| Abbreviation now | CST |
| UTC offset now | UTC+8 |
| Daylight saving time | Not observed since 1991 |
| Coordinates | 23.37° N, 103.38° E |
Which time zone Mengzi uses
The clocks in Mengzi follow Asia/Shanghai and do not move with the seasons. The last daylight saving period here was in 1991. Since then the offset has stayed at UTC+8.
Although China has 2 different offsets, Mengzi keeps the same time as Beijing.
Clock changes in Mengzi, 2026 and 2027
No clock changes are scheduled in Mengzi for 2026 or 2027.
How far ahead or behind Mengzi is
A 9:00 AM start in Mengzi 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 Mengzi 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.
Daylight in Mengzi
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Day length barely moves in Mengzi, from 10 hours 42 minutes to 13 hours 35 minutes. Sunrise and sunset shift by less than an hour across the year.
Daylight through the year in Mengzi
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 7:11 AM | 7:17 PM | 12 h 7 min |
| June solstice | June 21 | 6:21 AM | 7:56 PM | 13 h 35 min |
| September equinox | September 23 | 6:55 AM | 7:02 PM | 12 h 7 min |
| December solstice | December 22 | 7:44 AM | 6:26 PM | 10 h 42 min |
Clock time and sun time in Mengzi
The clock in Mengzi runs ahead of the sun. Solar noon, the moment the sun is highest, comes at about 1:05 PM on standard time. That is why sunrise and sunset both come late here.
Places close to Mengzi
Only 108 km (67 mi) away, Lai Chau in Vietnam is 1 hour behind Mengzi. Crossing between the two means resetting your watch.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Gejiu | 23 km (14 mi) | --:-- | Same time |
| Kaiyuan | 38 km (23 mi) | --:-- | Same time |
| Wenshan City | 89 km (55 mi) | --:-- | Same time |
| Lai Chau (Vietnam) | 108 km (67 mi) | --:-- | 1 h behind |
| Lao Cai (Vietnam) | 115 km (72 mi) | --:-- | 1 h behind |
| Yuxi | 139 km (86 mi) | --:-- | Same time |
| Hà Giang (Vietnam) | 175 km (109 mi) | --:-- | 1 h behind |
| Haikou Subdistrict | 177 km (110 mi) | --:-- | Same time |
More cities in China
All time zones and cities in China
Tools for time in Mengzi
- Convert a time to or from Mengzi: pick a date and time and see it in every city on your list.
- Add Mengzi to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Mengzi and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Mengzi in?
Mengzi uses the Asia/Shanghai time zone, which is UTC+8 (CST) all year.
Does Mengzi use daylight saving time?
Not any more. Mengzi last changed its clocks for daylight saving time in 1991 and now stays on UTC+8 all year.
What is the time difference between Mengzi and New York?
Mengzi 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 Mengzi does not.
Is Mengzi on the same time as Beijing?
Yes. Mengzi and Beijing both use UTC+8 right now.
How long is the longest day in Mengzi?
About 13 hours 35 minutes, around the June solstice. The shortest day, around the December solstice, has about 10 hours 42 minutes of daylight.
Why is the sun not highest at noon in Mengzi?
Clock time follows the time zone, not the sun. Mengzi lies west of the line its offset is based on, so solar noon comes at about 1:05 PM on standard time.
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.