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

7:00 PM — as of 6 October 2026. Abu Dhabi is 10 hours ahead of Denver.

Does the time difference between Denver and Abu Dhabi change?

Yes. In 2026 it's 11 hours or 10 hours, depending on the date, because only Denver changes its clocks.

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

There's no hour when both cities are in working hours (09:00–17:00). The fairest is around 09:00 in Denver (19:00 in Abu Dhabi).

What time zones are Denver and Abu Dhabi in?

Denver uses America/Denver (UTC−6 today); Abu Dhabi uses Asia/Dubai (UTC+4 today).

Time difference between Denver and Abu Dhabi

Abu Dhabi is 10 hours ahead of Denver. When it's 9:00 in Denver, it's 19:00 in Abu Dhabi.

From

Dubai is 10 hours ahead of Denver.

On Tuesday, 6 October 2026, 09:00 in Denver is 19:00 in Dubai. Denver is UTC−6; Dubai is UTC+4.

The gap through 2026

1 Jan – 8 MarDubai is 11 hours ahead of Denver.
8 Mar – 1 NovDubai is 10 hours ahead of Denver.
1 Nov – 31 DecDubai is 11 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 Abu Dhabi, hour by hour

On Tuesday 6 October.

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

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 MarAbu Dhabi is 11 hours ahead of Denver.
8 Mar – 1 NovAbu Dhabi is 10 hours ahead of Denver.
1 Nov – 31 DecAbu Dhabi is 11 hours ahead of Denver.

Best times for a call

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

Denver 09:00Working hoursAbu Dhabi 19:00Evening
Denver 10:00Working hoursAbu Dhabi 20:00Evening
Denver 11:00Working hoursAbu Dhabi 21:00Evening

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 Abu Dhabi when it's 9 AM in Denver?: 7:00 PM — as of 6 October 2026. Abu Dhabi is 10 hours ahead of Denver.
Does the time difference between Denver and Abu Dhabi change?: Yes. In 2026 it's 11 hours or 10 hours, depending on the date, because only Denver changes its clocks.
What's the best time for a call between Denver and Abu Dhabi?: There's no hour when both cities are in working hours (09:00–17:00). The fairest is around 09:00 in Denver (19:00 in Abu Dhabi).
What time zones are Denver and Abu Dhabi in?: Denver uses America/Denver (UTC−6 today); Abu Dhabi uses Asia/Dubai (UTC+4 today).

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