Bangkok to Upper Alton time converter

Upper Alton is 12 hours behind Bangkok. When it is 9:00 AM in Bangkok, it is 9:00 PM (Sun, Oct 18) in Upper Alton.

Bangkok ICT

Monday, October 19, 2026

Upper Alton CDT

Monday, October 19, 2026

Bangkok
Thailand
Mon, Oct 19
ICTUTC+7
Upper Alton
Illinois, United States
Mon, Oct 19
CDTUTC-5-12h
Finding your time zone…
Shared working hours (9:00–18:00)

Bangkok to Upper Alton conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because Bangkok and Upper Alton switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: -12h
  • Nov 1, 2026 – Mar 14, 2027: -13h
  • Mar 14, 2027 – Oct 19, 2027: -12h

Distance

Bangkok and Upper Alton are 14,055 km (8,733 miles) apart in a straight line.

More conversions

Upper Alton to BangkokBangkok to New YorkBangkok to LondonBangkok to Los AngelesBangkok to ChicagoBangkok to TorontoBangkok to São PauloBangkok to ParisBangkok to BerlinBangkok to MoscowBangkok to DubaiBangkok to New DelhiBangkok to Singapore
New York to Upper AltonLondon to Upper AltonLos Angeles to Upper AltonChicago to Upper AltonToronto to Upper AltonSão Paulo to Upper AltonParis to Upper AltonBerlin to Upper AltonMoscow to Upper AltonDubai to Upper AltonNew Delhi to Upper AltonSingapore to Upper Alton

Questions and answers

What is the time difference between Bangkok and Upper Alton?

Upper Alton is 12 hours behind Bangkok.

What time is it in Upper Alton when it is 9 AM in Bangkok?

When it is 9:00 AM in Bangkok, it is 9:00 PM (Sun, Oct 18) in Upper Alton.

When is the best time to call Upper Alton from Bangkok?

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

Does the time difference between Bangkok and Upper Alton change?

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