GMT to MST
Convert London Time — GMT/BST to Arizona Time — Phoenix (no DST) — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in London, it's 1:00 AM in Phoenix. Phoenix is 8 hours behind London. Use the converter above to turn any GMT time into MST, or scan the hour-by-hour table below for the full day.
GMT to MST at a glance
Planning a meeting between London and Phoenix
London and Phoenix share no standard 9-to-5 overlap, so a live call usually means one side taking an early-morning or late-evening slot. The hourly table below helps you pick the least-inconvenient time for everyone.
Hour-by-hour: London to Phoenix
A full day mapped from GMT to MST.
Frequently asked
Is Phoenix ahead of or behind London?
Phoenix is 8 hours behind London.
What is 12:00 PM GMT in MST?
12:00 PM in London is 4:00 AM in Phoenix.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so GMT and MST automatically reflect the correct daylight-saving offset for the current date.