Time difference between Phra Nakhon Si Ayutthaya and Chicago
Chicago is 12 hours behind Phra Nakhon Si Ayutthaya.
Local time in both cities
Phra Nakhon Si Ayutthaya · Thailand
14:05
Chicago · United States
02:05
Chicago is 12 hours behind Phra Nakhon Si Ayutthaya.
same day
Time zones
| Phra Nakhon Si Ayutthaya | Asia/Bangkok · UTC+07:00 |
|---|---|
| Chicago | America/Chicago · UTC-05:00 |
Phra Nakhon Si Ayutthaya does not observe daylight saving and stays on UTC+07:00 all year.
Chicago is currently on daylight saving time (UTC-05:00). Next change: 2026-11-01 01:00.
Hour-by-hour conversion
Calculated for 2026-09-21 local time in Phra Nakhon Si Ayutthaya. The two places start and end daylight saving on different dates, so another day can give a different result.
| Phra Nakhon Si Ayutthaya (source) | Chicago (target) |
|---|---|
| 00:00 | 12:00 prev day |
| 01:00 | 13:00 prev day |
| 02:00 | 14:00 prev day |
| 03:00 | 15:00 prev day |
| 04:00 | 16:00 prev day |
| 05:00 | 17:00 prev day |
| 06:00 | 18:00 prev day |
| 07:00 | 19:00 prev day |
| 08:00 | 20:00 prev day |
| 09:00 | 21:00 prev day |
| 10:00 | 22:00 prev day |
| 11:00 | 23:00 prev day |
| 12:00 | 00:00 |
| 13:00 | 01:00 |
| 14:00 | 02:00 |
| 15:00 | 03:00 |
| 16:00 | 04:00 |
| 17:00 | 05:00 |
| 18:00 | 06:00 |
| 19:00 | 07:00 |
| 20:00 | 08:00 |
| 21:00 | 09:00 |
| 22:00 | 10:00 |
| 23:00 | 11:00 |
Other common differences from Phra Nakhon Si Ayutthaya
FAQ
- How many hours apart are Phra Nakhon Si Ayutthaya and Chicago right now?
- The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
- Is this difference the same all year?
- Not necessarily. Phra Nakhon Si Ayutthaya uses Asia/Bangkok and Chicago uses America/Chicago; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
- How do I read the conversion table?
- The left column lists each whole hour in Phra Nakhon Si Ayutthaya; the right column is the local time in Chicago at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.