Time difference between Denver and Colombo
Colombo is 11 hours 30 minutes ahead of Denver. When it's 9:00 in Denver, it's 20:30 in Colombo.
Colombo is 11 hours 30 minutes ahead of Denver.
On Tuesday, 6 October 2026, 09:00 in Denver is 20:30 in Colombo. Denver is UTC−6; Colombo is UTC+5:30.
The gap through 2026
- 1 Jan – 8 MarColombo is 12 hours 30 minutes ahead of Denver.
- 8 Mar – 1 NovColombo is 11 hours 30 minutes ahead of Denver.
- 1 Nov – 31 DecColombo is 12 hours 30 minutes 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 Colombo, hour by hour
On Tuesday 6 October.
| Denver | Colombo |
|---|---|
| 07:00 Early morning | 18:30 Evening |
| 08:00 Early morning | 19:30 Evening |
| 09:00 Working hours | 20:30 Evening |
| 10:00 Working hours | 21:30 Evening |
| 11:00 Working hours | 22:30 Sleeping hours |
| 12:00 Working hours | 23:30 Sleeping hours |
| 13:00 Working hours | 00:30+1 Sleeping hours |
| 14:00 Working hours | 01:30+1 Sleeping hours |
| 15:00 Working hours | 02:30+1 Sleeping hours |
| 16:00 Working hours | 03:30+1 Sleeping hours |
| 17:00 Evening | 04:30+1 Sleeping hours |
| 18:00 Evening | 05:30+1 Sleeping hours |
| 19:00 Evening | 06:30+1 Sleeping hours |
| 20:00 Evening | 07:30+1 Early morning |
| 21:00 Evening | 08:30+1 Early morning |
| 22:00 Sleeping hours | 09:30+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 MarColombo is 12 hours 30 minutes ahead of Denver.
- 8 Mar – 1 NovColombo is 11 hours 30 minutes ahead of Denver.
- 1 Nov – 31 DecColombo is 12 hours 30 minutes ahead of Denver.
Best times for a call
Working hours (09:00–17:00) in Denver and Colombo don't overlap, so any call is early or late for someone.
- Denver 07:00Early morningColombo 18:30Evening
- Denver 09:00Working hoursColombo 20:30Evening
- Denver 21:00EveningColombo 08:30 +1Early morning
More time differences for Denver and Colombo
- New York and Colombo
- Los Angeles and Colombo
- Chicago and Colombo
- London and Colombo
- Paris and Colombo
- Berlin and Colombo
- New York and Denver
- Los Angeles and Denver
- Chicago and Denver
- Denver and Toronto
- Denver and Vancouver
- Denver and Mexico City
- Denver and São Paulo
- Denver and Buenos Aires
- Denver and Bogotá
- Denver and London
- Denver and Dublin
- Denver and Lisbon
- Denver and Madrid
- Denver and Paris
- Denver and Amsterdam
- Denver and Brussels
- Denver and Berlin
- Denver and Zurich
- Denver and Rome
- Denver and Stockholm
- Denver and Warsaw
- Denver and Athens
- Denver and Moscow
- Denver and Istanbul
- Denver and Dubai
- Denver and Abu Dhabi
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 Colombo when it's 9 AM in Denver?
- 8:30 PM — as of 6 October 2026. Colombo is 11 hours 30 minutes ahead of Denver.
- Does the time difference between Denver and Colombo change?
- Yes. In 2026 it's 12 hours 30 minutes or 11 hours 30 minutes, depending on the date, because only Denver changes its clocks.
- What's the best time for a call between Denver and Colombo?
- There's no hour when both cities are in working hours (09:00–17:00). The fairest is around 07:00 in Denver (18:30 in Colombo).
- What time zones are Denver and Colombo in?
- Denver uses America/Denver (UTC−6 today); Colombo uses Asia/Colombo (UTC+5:30 today).
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