Convert WAT to MST
MST is 8 hours behind WAT. WAT is UTC+1 and MST is UTC−7.
Right now: WAT · MST
Best time to schedule a meeting
Standard 9–5 working hours do not overlap at all between WAT and MST. Someone has to take an early or late call — or use asynchronous communication instead.
| WAT | MST | Suitable? |
|---|---|---|
| 9:00 AM | 1:00 AM | outside 9–5 |
| 10:00 AM | 2:00 AM | outside 9–5 |
| 11:00 AM | 3:00 AM | outside 9–5 |
| 12:00 PM | 4:00 AM | outside 9–5 |
| 1:00 PM | 5:00 AM | outside 9–5 |
| 2:00 PM | 6:00 AM | outside 9–5 |
| 3:00 PM | 7:00 AM | outside 9–5 |
| 4:00 PM | 8:00 AM | outside 9–5 |
| 5:00 PM | 9:00 AM | working hours |
WAT to MST conversion table
| WAT | MST |
|---|---|
| 12:00 AM | 4:00 PM (previous day) |
| 1:00 AM | 5:00 PM (previous day) |
| 2:00 AM | 6:00 PM (previous day) |
| 3:00 AM | 7:00 PM (previous day) |
| 4:00 AM | 8:00 PM (previous day) |
| 5:00 AM | 9:00 PM (previous day) |
| 6:00 AM | 10:00 PM (previous day) |
| 7:00 AM | 11:00 PM (previous day) |
| 8:00 AM | 12:00 AM |
| 9:00 AM | 1:00 AM |
| 10:00 AM | 2:00 AM |
| 11:00 AM | 3:00 AM |
| 12:00 PM | 4:00 AM |
| 1:00 PM | 5:00 AM |
| 2:00 PM | 6:00 AM |
| 3:00 PM | 7:00 AM |
| 4:00 PM | 8:00 AM |
| 5:00 PM | 9:00 AM |
| 6:00 PM | 10:00 AM |
| 7:00 PM | 11:00 AM |
| 8:00 PM | 12:00 PM |
| 9:00 PM | 1:00 PM |
| 10:00 PM | 2:00 PM |
| 11:00 PM | 3:00 PM |
About WAT
West Africa Time (WAT) is UTC+1. It is used in Nigeria, Cameroon, Angola and much of central and western Africa.
West Africa Time is UTC+1 all year, with no daylight saving anywhere that uses it. It covers Lagos, Kinshasa and Luanda — a very large population on a single fixed offset. It matches Central European Time in winter and falls an hour behind it in summer, which means a standing Europe–Nigeria meeting moves twice a year at the European end and never at the African one.
About MST
Mountain Standard Time (MST) is UTC−7. It is used in Denver and Salt Lake City in winter, and Phoenix all year.
Mountain Standard Time is UTC−7. Denver and Salt Lake City use it in winter and switch to MDT in summer; Arizona does not switch at all and stays on MST year-round, which means Phoenix agrees with Denver in winter and with Los Angeles in summer. The Navajo Nation, inside Arizona, does observe daylight saving, so the state contains both. Any scheduling system that maps "Arizona" to "Mountain Time" without the no-DST flag will be an hour out for eight months.
Does this gap change with the seasons?
This gap is seasonal. The abbreviations themselves are fixed offsets, but the region on MST switches to MDT (UTC−6) from March to November. So the 8-hour figure on this page is correct for the part of the year when both places are actually on these abbreviations, and changes by an hour outside it.
WAT does not shift, so the whole change comes from one side. A recurring meeting fixed in WAT will appear to move by an hour for everyone on the other side, twice a year, without anyone changing anything.
This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.
Frequently asked questions
What time is 9:00 AM WAT in MST?
9:00 AM WAT is 1:00 AM MST.
Is MST ahead of WAT?
MST is 8 hours behind WAT.
Which time zone does this use?
WAT is UTC+1 and MST is UTC−7. Both abbreviations denote a single fixed offset, so this conversion never shifts with daylight saving — what changes is which abbreviation a place is using at the time.