Bangkok to Boulder time converter

Boulder is 13 hours behind Bangkok. When it is 9:00 AM in Bangkok, it is 8:00 PM (Sat, Oct 17) in Boulder.

Bangkok ICT

Sunday, October 18, 2026

Boulder MDT

Saturday, October 17, 2026

Bangkok
Thailand
Sun, Oct 18
ICTUTC+7
Boulder
Colorado, United States
Sat, Oct 17
MDTUTC-6-13h
Finding your time zone…
Shared working hours (9:00–18:00)

Bangkok to Boulder conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Bangkok (8:00 PM – 10:00 PM in Boulder): 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 Boulder switch clocks on different dates:

  • Oct 18, 2026 – Nov 1, 2026: -13h
  • Nov 1, 2026 – Mar 14, 2027: -14h
  • Mar 14, 2027 – Oct 18, 2027: -13h

Distance

Bangkok and Boulder are 13,470 km (8,370 miles) apart in a straight line.

More conversions

Boulder 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 BoulderLondon to BoulderLos Angeles to BoulderChicago to BoulderToronto to BoulderSão Paulo to BoulderParis to BoulderBerlin to BoulderMoscow to BoulderDubai to BoulderNew Delhi to BoulderSingapore to Boulder

Questions and answers

What is the time difference between Bangkok and Boulder?

Boulder is 13 hours behind Bangkok.

What time is it in Boulder when it is 9 AM in Bangkok?

When it is 9:00 AM in Bangkok, it is 8:00 PM (Sat, Oct 17) in Boulder.

When is the best time to call Boulder from Bangkok?

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Bangkok (8:00 PM – 10:00 PM in Boulder): working hours on one side, early or late on the other.

Does the time difference between Bangkok and Boulder change?

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