What time is it in Bangkok when it's 9 AM in Denver?

10:00 PM — as of 3 October 2026. Bangkok is 13 hours ahead of Denver.

Does the time difference between Denver and Bangkok change?

Yes. In 2026 it's 14 hours or 13 hours, depending on the date, because only Denver changes its clocks.

What's the best time for a call between Denver and Bangkok?

There's no hour when both cities are in working hours (09:00–17:00). The fairest is around 07:00 in Denver (20:00 in Bangkok).

What time zones are Denver and Bangkok in?

Denver uses America/Denver (UTC−6 today); Bangkok uses Asia/Bangkok (UTC+7 today).

Time difference between Denver and Bangkok

Bangkok is 13 hours ahead of Denver. When it's 9:00 in Denver, it's 22:00 in Bangkok.

From

Bangkok is 13 hours ahead of Denver.

On Saturday, 3 October 2026, 09:00 in Denver is 22:00 in Bangkok. Denver is UTC−6; Bangkok is UTC+7.

The gap through 2026

1 Jan – 8 MarBangkok is 14 hours ahead of Denver.
8 Mar – 1 NovBangkok is 13 hours ahead of Denver.
1 Nov – 31 DecBangkok is 14 hours ahead of Denver.

Denver moves its clocks forward on 8 March (UTC−7 → UTC−6).
Denver moves its clocks back on 1 November (UTC−6 → UTC−7).

Denver to Bangkok, hour by hour

On Monday 5 October.

Denver	Bangkok
07:00 Early morning	20:00 Evening
08:00 Early morning	21:00 Evening
09:00 Working hours	22:00 Sleeping hours
10:00 Working hours	23:00 Sleeping hours
11:00 Working hours	00:00+1 Sleeping hours
12:00 Working hours	01:00+1 Sleeping hours
13:00 Working hours	02:00+1 Sleeping hours
14:00 Working hours	03:00+1 Sleeping hours
15:00 Working hours	04:00+1 Sleeping hours
16:00 Working hours	05:00+1 Sleeping hours
17:00 Evening	06:00+1 Sleeping hours
18:00 Evening	07:00+1 Early morning
19:00 Evening	08:00+1 Early morning
20:00 Evening	09:00+1 Working hours
21:00 Evening	10:00+1 Working hours
22:00 Sleeping hours	11:00+1 Working hours

Daylight saving in 2026

Denver moves its clocks forward on Sunday 8 March (UTC−7 → UTC−6).
Denver moves its clocks back on Sunday 1 November (UTC−6 → UTC−7).

1 Jan – 8 MarBangkok is 14 hours ahead of Denver.
8 Mar – 1 NovBangkok is 13 hours ahead of Denver.
1 Nov – 31 DecBangkok is 14 hours ahead of Denver.

Best times for a call

Working hours (09:00–17:00) in Denver and Bangkok don't overlap, so any call is early or late for someone.

Denver 07:00Early morningBangkok 20:00Evening
Denver 20:00EveningBangkok 09:00 +1Working hours
Denver 21:00EveningBangkok 10:00 +1Working hours

How the time difference calculator works

The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.

Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.

Examples

London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.

Good for

Knowing when a colleague's day starts
Setting expectations for replies across time zones
Planning travel and jet lag

Frequently asked questions

What time is it in Bangkok when it's 9 AM in Denver?: 10:00 PM — as of 3 October 2026. Bangkok is 13 hours ahead of Denver.
Does the time difference between Denver and Bangkok change?: Yes. In 2026 it's 14 hours or 13 hours, depending on the date, because only Denver changes its clocks.
What's the best time for a call between Denver and Bangkok?: There's no hour when both cities are in working hours (09:00–17:00). The fairest is around 07:00 in Denver (20:00 in Bangkok).
What time zones are Denver and Bangkok in?: Denver uses America/Denver (UTC−6 today); Bangkok uses Asia/Bangkok (UTC+7 today).

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