Convert MST to WAT

WAT is 8 hours ahead of MST. MST is UTC−7 and WAT is UTC+1.

Best time to schedule a meeting

Standard 9–5 working hours do not overlap at all between MST and WAT. Someone has to take an early or late call — or use asynchronous communication instead.

MST to WAT conversion table

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.

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.

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

Other MST conversions

• MST to UTC
• MST to GMT
• MST to EST
• MST to EDT
• MST to CST
• MST to CDT
• MST to MDT
• MST to PST
• MST to AKST
• MST to HST
• MST to BRT
• MST to BST
• MST to CET
• MST to CEST
• MST to EET
• MST to EEST

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