MST to WAT Time Converter
WAT is 7 hours ahead of MST. The US Mountain states are currently on MDT (UTC-6:00), and WAT is UTC+1:00.
Best Time to Call Between MST and WAT
Both zones are inside normal business hours between 9:00 AM and 10:00 AM MST — that's 4:00 PM to 5:00 PM WAT. That's a 1-hour window.
both at work MST only WAT only neither — hours along the strip are MST.
Common Times Converted
MST on the left, WAT on the right.
MST to WAT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| MST | WAT | Working hours |
|---|---|---|
| 12:00 AM | 7:00 AM | — |
| 1:00 AM | 8:00 AM | — |
| 2:00 AM | 9:00 AM | WAT only |
| 3:00 AM | 10:00 AM | WAT only |
| 4:00 AM | 11:00 AM | WAT only |
| 5:00 AM | 12:00 PM | WAT only |
| 6:00 AM | 1:00 PM | WAT only |
| 7:00 AM | 2:00 PM | WAT only |
| 8:00 AM | 3:00 PM | WAT only |
| 9:00 AM | 4:00 PM | Both zones |
| 10:00 AM | 5:00 PM | MST only |
| 11:00 AM | 6:00 PM | MST only |
| 12:00 PM | 7:00 PM | MST only |
| 1:00 PM | 8:00 PM | MST only |
| 2:00 PM | 9:00 PM | MST only |
| 3:00 PM | 10:00 PM | MST only |
| 4:00 PM | 11:00 PM | MST only |
| 5:00 PM | 12:00 AM next day | — |
| 6:00 PM | 1:00 AM next day | — |
| 7:00 PM | 2:00 AM next day | — |
| 8:00 PM | 3:00 AM next day | — |
| 9:00 PM | 4:00 AM next day | — |
| 10:00 PM | 5:00 AM next day | — |
| 11:00 PM | 6:00 AM next day | — |
What MST and WAT Actually Are
MST — Mountain Standard Time
Denver, Salt Lake City, Calgary — and Phoenix year-round. Standing at UTC-7:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to MST. Arizona stays on MST all year, so Phoenix and Denver are an hour apart for eight months and identical for four.
Arizona has stayed on MST year-round since 1968 — the Navajo Nation within it does observe daylight saving, making the state a patchwork.
WAT — West Africa Time
Lagos, Abuja, Kinshasa, Luanda, Douala. Standing at UTC+1:00 as written, and the region does not change its clocks, so that offset holds all year.
West Africa Time covers a long north-south strip of the continent, and because it sits near the equator its daylight hours barely shift across the year.
What This Means in Practice
This gap is not fixed
MST changes its clocks and WAT does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on MST
Cities on WAT
Frequently Asked Questions
What is the time difference between MST and WAT?
WAT is 7 hours ahead of MST. That is the live figure. Taken strictly as written, the gap between MST and WAT is 8 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM MST in WAT?
9:00 AM MST is 4:00 PM WAT.
What are the best hours to schedule a call between MST and WAT?
Between 9:00 AM and 10:00 AM MST, which is 4:00 PM to 5:00 PM WAT. Both sides are inside normal business hours through that window.
Does the difference between MST and WAT change during the year?
Yes. MST observes daylight saving and WAT does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.
Does MST always mean Mountain Standard Time?
Arizona stays on MST all year, so Phoenix and Denver are an hour apart for eight months and identical for four.