Chicago to Phra Nakhon Si Ayutthaya time converter

Phra Nakhon Si Ayutthaya is 12 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 9:00 PM in Phra Nakhon Si Ayutthaya.

Chicago CDT

Thursday, October 22, 2026

Phra Nakhon Si Ayutthaya ICT

Thursday, October 22, 2026

Chicago
Illinois, United States
Thu, Oct 22
CDTUTC-5
Phra Nakhon Si Ayutthaya
Thailand
Thu, Oct 22
ICTUTC+7+12h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Phra Nakhon Si Ayutthaya conversion table

Every hour of today in Chicago and the matching time in Phra Nakhon Si Ayutthaya. Light rows are typical working hours (9:00–18:00).

ChicagoPhra Nakhon Si Ayutthaya
12:00 AM12:00 PM
1:00 AM1:00 PM
2:00 AM2:00 PM
3:00 AM3:00 PM
4:00 AM4:00 PM
5:00 AM5:00 PM
6:00 AM6:00 PM
7:00 AM7:00 PM
8:00 AM8:00 PM
9:00 AM9:00 PM
10:00 AM10:00 PM
11:00 AM11:00 PM
12:00 PM12:00 AM+1 day
1:00 PM1:00 AM+1 day
2:00 PM2:00 AM+1 day
3:00 PM3:00 AM+1 day
4:00 PM4:00 AM+1 day
5:00 PM5:00 AM+1 day
6:00 PM6:00 AM+1 day
7:00 PM7:00 AM+1 day
8:00 PM8:00 AM+1 day
9:00 PM9:00 AM+1 day
10:00 PM10:00 AM+1 day
11:00 PM11:00 AM+1 day

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 10:00 AM in Chicago (9:00 PM – 10:00 PM in Phra Nakhon Si Ayutthaya): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Chicago and Phra Nakhon Si Ayutthaya switch clocks on different dates:

  • Oct 22, 2026 – Nov 1, 2026: +12h
  • Nov 1, 2026 – Mar 14, 2027: +13h
  • Mar 14, 2027 – Oct 22, 2027: +12h

Distance

Chicago and Phra Nakhon Si Ayutthaya are 13,709 km (8,518 miles) apart in a straight line.

More conversions

Phra Nakhon Si Ayutthaya to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to Phra Nakhon Si AyutthayaLondon to Phra Nakhon Si AyutthayaLos Angeles to Phra Nakhon Si AyutthayaToronto to Phra Nakhon Si AyutthayaSão Paulo to Phra Nakhon Si AyutthayaParis to Phra Nakhon Si AyutthayaBerlin to Phra Nakhon Si AyutthayaMoscow to Phra Nakhon Si AyutthayaDubai to Phra Nakhon Si AyutthayaNew Delhi to Phra Nakhon Si AyutthayaBangkok to Phra Nakhon Si AyutthayaSingapore to Phra Nakhon Si Ayutthaya

Questions and answers

What is the time difference between Chicago and Phra Nakhon Si Ayutthaya?

Phra Nakhon Si Ayutthaya is 12 hours ahead of Chicago.

What time is it in Phra Nakhon Si Ayutthaya when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 9:00 PM in Phra Nakhon Si Ayutthaya.

When is the best time to call Phra Nakhon Si Ayutthaya from Chicago?

Working hours don't overlap fully. The closest fit is 9:00 AM – 10:00 AM in Chicago (9:00 PM – 10:00 PM in Phra Nakhon Si Ayutthaya): working hours on one side, early or late on the other.

Does the time difference between Chicago and Phra Nakhon Si Ayutthaya change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.