Phra Nakhon Si Ayutthaya runs on UTC+7 every day of the year, with no daylight saving time.
Phra Nakhon Si Ayutthaya and your time
Phra Nakhon Si Ayutthaya at a glance
| Country | Thailand |
|---|---|
| Region | Phra Nakhon Si Ayutthaya |
| Time zone | Asia/Bangkok |
| UTC offset now | UTC+7 |
| Daylight saving time | Not observed |
| Coordinates | 14.35° N, 100.58° E |
Phra Nakhon Si Ayutthaya time zone and clock changes
The clocks in Phra Nakhon Si Ayutthaya follow Asia/Bangkok and keep UTC+7 through every season. No daylight saving time has been recorded here since 1970.
All of Thailand keeps the same time, so Phra Nakhon Si Ayutthaya reads the same clock as Bangkok.
Clock changes in Phra Nakhon Si Ayutthaya, 2026 and 2027
No clock changes are scheduled in Phra Nakhon Si Ayutthaya for 2026 or 2027.
Time difference between Phra Nakhon Si Ayutthaya and other cities
When it is 9:00 AM in Phra Nakhon Si Ayutthaya, it is 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 Phra Nakhon Si Ayutthaya 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 and sunset in Phra Nakhon Si Ayutthaya
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Day length barely moves in Phra Nakhon Si Ayutthaya, from 11 hours 17 minutes to 12 hours 59 minutes. Sunrise and sunset shift by less than an hour across the year.
Daylight through the year in Phra Nakhon Si Ayutthaya
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:22 AM | 6:29 PM | 12 h 6 min |
| June solstice | June 21 | 5:50 AM | 6:49 PM | 12 h 59 min |
| September equinox | September 23 | 6:07 AM | 6:13 PM | 12 h 7 min |
| December solstice | December 22 | 6:38 AM | 5:55 PM | 11 h 17 min |
Clock time and sun time in Phra Nakhon Si Ayutthaya
Clock time and sun time line up fairly well in Phra Nakhon Si Ayutthaya: solar noon falls at about 12:20 PM on standard time.
Cities near Phra Nakhon Si Ayutthaya
All the places listed below keep the same time as Phra Nakhon Si Ayutthaya.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Khlong Luang | 33 km (20 mi) | --:-- | Same time |
| Pathum Thani | 38 km (24 mi) | --:-- | Same time |
| Sara Buri | 42 km (26 mi) | --:-- | Same time |
| Ban Lam Luk Ka | 47 km (29 mi) | --:-- | Same time |
| Phra Phutthabat | 48 km (30 mi) | --:-- | Same time |
| Lopburi | 50 km (31 mi) | --:-- | Same time |
| Suphan Buri | 51 km (32 mi) | --:-- | Same time |
| Sing Buri | 62 km (39 mi) | --:-- | Same time |
More cities in Thailand
- Bangkok
- Samut Prakan
- Chon Buri
- Hat Yai
- Si Racha
- Lampang
- Surat Thani
- Udon Thani
- Chiang Mai
- Nakhon Ratchasima
- Hua Hin
- Ubon Ratchathani
All time zones and cities in Thailand
Plan around the time in Phra Nakhon Si Ayutthaya
- Convert a time to or from Phra Nakhon Si Ayutthaya: pick a date and time and see it in every city on your list.
- Add Phra Nakhon Si Ayutthaya to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Phra Nakhon Si Ayutthaya and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Phra Nakhon Si Ayutthaya in?
Phra Nakhon Si Ayutthaya uses the Asia/Bangkok time zone, which is UTC+7 all year.
Does Phra Nakhon Si Ayutthaya use daylight saving time?
No. Phra Nakhon Si Ayutthaya stays on UTC+7 all year, so the time difference to places without daylight saving time never changes.
What is the time difference between Phra Nakhon Si Ayutthaya and New York?
Phra Nakhon Si Ayutthaya 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 Phra Nakhon Si Ayutthaya does not.
Is Phra Nakhon Si Ayutthaya on the same time as Bangkok?
Yes. Phra Nakhon Si Ayutthaya and Bangkok both use UTC+7 right now.
How long is the longest day in Phra Nakhon Si Ayutthaya?
About 12 hours 59 minutes, around the June solstice. The shortest day, around the December solstice, has about 11 hours 17 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.