Chicago to Ratchaburi time converter

Ratchaburi is 12 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 9:00 PM in Ratchaburi.

Chicago CDT

Saturday, October 17, 2026

Ratchaburi ICT

Saturday, October 17, 2026

Chicago
Illinois, United States
Sat, Oct 17
CDTUTC-5
Ratchaburi
Thailand
Sat, Oct 17
ICTUTC+7+12h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Ratchaburi conversion table

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

ChicagoRatchaburi
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 Ratchaburi): 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 Ratchaburi switch clocks on different dates:

  • Oct 17, 2026 – Nov 1, 2026: +12h
  • Nov 1, 2026 – Mar 14, 2027: +13h
  • Mar 14, 2027 – Oct 17, 2027: +12h

Distance

Chicago and Ratchaburi are 13,809 km (8,581 miles) apart in a straight line.

More conversions

Ratchaburi 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 RatchaburiLondon to RatchaburiLos Angeles to RatchaburiToronto to RatchaburiSão Paulo to RatchaburiParis to RatchaburiBerlin to RatchaburiMoscow to RatchaburiDubai to RatchaburiNew Delhi to RatchaburiBangkok to RatchaburiSingapore to Ratchaburi

Questions and answers

What is the time difference between Chicago and Ratchaburi?

Ratchaburi is 12 hours ahead of Chicago.

What time is it in Ratchaburi when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 9:00 PM in Ratchaburi.

When is the best time to call Ratchaburi 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 Ratchaburi): working hours on one side, early or late on the other.

Does the time difference between Chicago and Ratchaburi change?

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