Honolulu and Denver working-hours overlap
On Monday, 28 September 2026, Honolulu is 4 hours behind Denver — UTC-10:00 against UTC-06:00. Their working hours overlap for 4 hours that day, between 19:00–23:00 UTC — 09:00–13:00 in Honolulu and 13:00–17:00 in Denver. Honolulu does not change clocks at all. Denver changes clocks on Sunday, 1 November 2026, and the gap between them goes from 4 hours to 3 hours.
Every figure on this page describes Monday, 28 September 2026 — a fixed day, not the day you are reading it. Working hours are 09:00–17:00 local time for both cities; change either, or pick another date, in the overlap calculator.
Shared working hours
Everyone is at work between 19:00–23:00 UTC — 4 hours.
| City | Local time | Offset |
|---|---|---|
| Honolulu | 09:00–13:00 | UTC-10:00 |
| Denver | 13:00–17:00 | UTC-06:00 |
Each city's working day
| City | Local hours | In UTC | Offset | Next clock change |
|---|---|---|---|---|
| Honolulu | 09:00–17:00 | 19:00–03:00 UTC | UTC-10:00 | No daylight saving |
| Denver | 09:00–17:00 | 15:00–23:00 UTC | UTC-06:00 | UTC-06:00 → UTC-07:00, 1 Nov 2026 |
How the shared window moves through the year
Denver changes clocks on Sunday, 1 November 2026, and Honolulu never does, so the gap between them moves only when Denver's clocks do. Each row is the same pair of working days, sampled once a month, so the window's size and position follow the clock changes described above.
| Month | Shared window | Length |
|---|---|---|
| 2026-10 | 19:00–23:00 UTC | 4 hours |
| 2026-11 | 19:00–00:00 UTC | 5 hours |
| 2026-12 | 19:00–00:00 UTC | 5 hours |
| 2027-01 | 19:00–00:00 UTC | 5 hours |
| 2027-02 | 19:00–00:00 UTC | 5 hours |
| 2027-03 | 19:00–23:00 UTC | 4 hours |
| 2027-04 | 19:00–23:00 UTC | 4 hours |
| 2027-05 | 19:00–23:00 UTC | 4 hours |
| 2027-06 | 19:00–23:00 UTC | 4 hours |
| 2027-07 | 19:00–23:00 UTC | 4 hours |
| 2027-08 | 19:00–23:00 UTC | 4 hours |
| 2027-09 | 19:00–23:00 UTC | 4 hours |
Questions
- What time can Honolulu and Denver meet?
- 19:00–23:00 UTC on Monday, 28 September 2026 — 4 hours. In Honolulu that is 09:00–13:00, and in Denver it is 13:00–17:00.
- How far apart are Honolulu and Denver?
- On Monday, 28 September 2026, Honolulu is 4 hours behind Denver — UTC-10:00 against UTC-06:00. Honolulu does not change clocks at all. Denver changes clocks on Sunday, 1 November 2026, and the gap between them goes from 4 hours to 3 hours.
- Does the overlap between Honolulu and Denver change through the year?
- Denver changes clocks on Sunday, 1 November 2026, and Honolulu never does, so the gap between them moves only when Denver's clocks do. Sampled once a month across the twelve months from Monday, 28 September 2026 the window is 19:00–23:00 UTC, 19:00–00:00 UTC.
Related city pairs
- Honolulu and San Francisco
- Honolulu and Phoenix
- Honolulu and Mexico City
- Honolulu and Chicago
- Honolulu and Bogotá
- Honolulu and New York
Or read how overlap is calculated and the other questions people ask about scheduling across time zones.