04:00 MST to UTC
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Daylight saving right now
Coordinated Universal Time
UTC is currently on UTC (UTC+00:00).
no clock change scheduled — this zone is fixed at UTC+00:00
UTC is the reference clock every other offset is quoted against. It has no daylight saving and never shifts.
Mountain Standard Time
America/Denver is on MDT (UTC-06:00).
next change: Sun, 1 Nov 2026 01:00 local → MST (80 days)
MST is UTC-7. Denver switches to MDT (UTC-6) for summer; Phoenix does not — Arizona stays on MST all year, so half the year Phoenix and Denver disagree.
Best time to call green = 09:00–18:00 on both sides
3 overlapping working hours. The longest run is 09:00–12:00 MST, which is 15:00–18:00 UTC.
MST to UTC, hour by hour 12 August 2026 · every row is a permalink
| MST | UTC | 12-hour | Day | Permalink |
|---|---|---|---|---|
| 00:00 | 06:00 UTC | 6:00 AM | same day | 00:00 → |
| 01:00 | 07:00 UTC | 7:00 AM | same day | 01:00 → |
| 02:00 | 08:00 UTC | 8:00 AM | same day | 02:00 → |
| 03:00 | 09:00 UTC | 9:00 AM | same day | 03:00 → |
| 04:00 | 10:00 UTC | 10:00 AM | same day | 04:00 → |
| 05:00 | 11:00 UTC | 11:00 AM | same day | 05:00 → |
| 06:00 | 12:00 UTC | 12:00 PM | same day | 06:00 → |
| 07:00 | 13:00 UTC | 1:00 PM | same day | 07:00 → |
| 08:00 | 14:00 UTC | 2:00 PM | same day | 08:00 → |
| 09:00 | 15:00 UTC | 3:00 PM | same day | 09:00 → |
| 10:00 | 16:00 UTC | 4:00 PM | same day | 10:00 → |
| 11:00 | 17:00 UTC | 5:00 PM | same day | 11:00 → |
| 12:00 | 18:00 UTC | 6:00 PM | same day | 12:00 → |
| 13:00 | 19:00 UTC | 7:00 PM | same day | 13:00 → |
| 14:00 | 20:00 UTC | 8:00 PM | same day | 14:00 → |
| 15:00 | 21:00 UTC | 9:00 PM | same day | 15:00 → |
| 16:00 | 22:00 UTC | 10:00 PM | same day | 16:00 → |
| 17:00 | 23:00 UTC | 11:00 PM | same day | 17:00 → |
| 18:00 | 00:00 UTC | 12:00 AM | next day | 18:00 → |
| 19:00 | 01:00 UTC | 1:00 AM | next day | 19:00 → |
| 20:00 | 02:00 UTC | 2:00 AM | next day | 20:00 → |
| 21:00 | 03:00 UTC | 3:00 AM | next day | 21:00 → |
| 22:00 | 04:00 UTC | 4:00 AM | next day | 22:00 → |
| 23:00 | 05:00 UTC | 5:00 AM | next day | 23:00 → |