Sanmenxia runs on UTC+8 (CST) every day of the year, with no daylight saving time.
Sanmenxia and your time
Sanmenxia at a glance
| Country | China |
|---|---|
| Region | Henan |
| Time zone | Asia/Shanghai |
| Abbreviation now | CST |
| UTC offset now | UTC+8 |
| Daylight saving time | Not observed since 1991 |
| Coordinates | 34.78° N, 111.19° E |
Which time zone Sanmenxia uses
The clocks in Sanmenxia 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, Sanmenxia keeps the same time as Beijing.
Clock changes in Sanmenxia, 2026 and 2027
No clock changes are scheduled in Sanmenxia for 2026 or 2027.
Sanmenxia time compared with major cities
When it is 9:00 AM in Sanmenxia, 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 Sanmenxia 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 counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Sunrise, sunset and day length in Sanmenxia
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Over the year, daylight in Sanmenxia grows from 9 hours 49 minutes to 14 hours 30 minutes and back, a swing of 4 hours 41 minutes.
Daylight through the year in Sanmenxia
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:40 AM | 6:47 PM | 12 h 7 min |
| June solstice | June 21 | 5:22 AM | 7:52 PM | 14 h 30 min |
| September equinox | September 23 | 6:24 AM | 6:31 PM | 12 h 8 min |
| December solstice | December 22 | 7:39 AM | 5:28 PM | 9 h 49 min |
When the sun is highest in Sanmenxia
Sanmenxia lies close to the centre of its time zone, so the sun is highest at about 12:35 PM on standard time, close to clock noon.
Cities near Sanmenxia
Every city below shares Sanmenxia’s clock.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Yuncheng | 33 km (20 mi) | --:-- | Same time |
| Yima | 63 km (39 mi) | --:-- | Same time |
| Yongji | 69 km (43 mi) | --:-- | Same time |
| Hancheng | 103 km (64 mi) | --:-- | Same time |
| Huayin | 106 km (66 mi) | --:-- | Same time |
| Luoyang | 114 km (71 mi) | --:-- | Same time |
| Jiyuan | 132 km (82 mi) | --:-- | Same time |
| Linfen | 148 km (92 mi) | --:-- | Same time |
More cities in China
All time zones and cities in China
Tools for time in Sanmenxia
- Convert a time to or from Sanmenxia: pick a date and time and see it in every city on your list.
- Add Sanmenxia to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Sanmenxia and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Sanmenxia in?
Sanmenxia uses the Asia/Shanghai time zone, which is UTC+8 (CST) all year.
Does Sanmenxia use daylight saving time?
Not any more. Sanmenxia last changed its clocks for daylight saving time in 1991 and now stays on UTC+8 all year.
What is the time difference between Sanmenxia and New York?
Sanmenxia 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 Sanmenxia does not.
Is Sanmenxia on the same time as Beijing?
Yes. Sanmenxia and Beijing both use UTC+8 right now.
How long is the longest day in Sanmenxia?
About 14 hours 30 minutes, around the June solstice. The shortest day, around the December solstice, has about 9 hours 49 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.