utc now / zones / utc-to-mst

UTC to MST converter

MST is 6 hours behind UTC right now. Live clocks on both sides, a direct time input, the full 24-hour table with a permalink per hour, and the real daylight-saving state — computed from the IANA tz database on every request, never from a stored offset.

Coordinated Universal Time · UTC
23:21:41
Wednesday, 12 August 2026 · UTC · UTC+00:00
⇄
Mountain Standard Time · America/Denver
17:21:41
Wednesday, 12 August 2026 · MDT · UTC-06:00 · DST

Convert an exact time type it — no sliders

17:21
swap

Conversion runs in your browser against the same IANA rules the server uses, so it keeps working offline and nothing you type is sent anywhere.

Daylight saving right now

Mountain Standard Time

America/Denver is currently on MDT (UTC-06:00), its daylight-saving clock. That is not MST — this page is named for the abbreviation people search for, and tells you the truth about which one is actually in force.

next change: Sun, 1 Nov 2026 01:00 local → MST (80 days, clocks go back)

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.

Coordinated Universal Time

UTC is on UTC (UTC+00:00).

no clock change scheduled — fixed at UTC+00:00

UTC is the reference clock every other offset is quoted against. It has no daylight saving and never shifts.

Best time to call green = 09:00–18:00 on both sides

3 overlapping working hours. The longest run is 15:00–18:00 UTC, which is 09:00–12:00 MST.

Google Calendar Outlook download .ics

UTC to MST, hour by hour 12 August 2026 · every row is a permalink

UTC MST 12-hour Day Permalink
00:00 18:00 MDT 6:00 PM previous day 00:00 →
01:00 19:00 MDT 7:00 PM previous day 01:00 →
02:00 20:00 MDT 8:00 PM previous day 02:00 →
03:00 21:00 MDT 9:00 PM previous day 03:00 →
04:00 22:00 MDT 10:00 PM previous day 04:00 →
05:00 23:00 MDT 11:00 PM previous day 05:00 →
06:00 00:00 MDT 12:00 AM same day 06:00 →
07:00 01:00 MDT 1:00 AM same day 07:00 →
08:00 02:00 MDT 2:00 AM same day 08:00 →
09:00 03:00 MDT 3:00 AM same day 09:00 →
10:00 04:00 MDT 4:00 AM same day 10:00 →
11:00 05:00 MDT 5:00 AM same day 11:00 →
12:00 06:00 MDT 6:00 AM same day 12:00 →
13:00 07:00 MDT 7:00 AM same day 13:00 →
14:00 08:00 MDT 8:00 AM same day 14:00 →
15:00 09:00 MDT 9:00 AM same day 15:00 →
16:00 10:00 MDT 10:00 AM same day 16:00 →
17:00 11:00 MDT 11:00 AM same day 17:00 →
18:00 12:00 MDT 12:00 PM same day 18:00 →
19:00 13:00 MDT 1:00 PM same day 19:00 →
20:00 14:00 MDT 2:00 PM same day 20:00 →
21:00 15:00 MDT 3:00 PM same day 21:00 →
22:00 16:00 MDT 4:00 PM same day 22:00 →
23:00 17:00 MDT 5:00 PM same day 23:00 →

Every hour as its own page

00:00 UTC 01:00 UTC 02:00 UTC 03:00 UTC 04:00 UTC 05:00 UTC 06:00 UTC 07:00 UTC 08:00 UTC 09:00 UTC 10:00 UTC 11:00 UTC 12:00 UTC 13:00 UTC 14:00 UTC 15:00 UTC 16:00 UTC 17:00 UTC 18:00 UTC 19:00 UTC 20:00 UTC 21:00 UTC 22:00 UTC 23:00 UTC

UTC to MST — questions

What time is it in MST when it is UTC now?
MST is currently 17:21 on Wednesday, 12 August 2026 (MDT, UTC-06:00), while UTC is 23:21 (UTC+00:00). That is 6 hours behind the source clock right now.
How many hours behind is MST of UTC?
6 hours at this moment. The gap is not constant across the year: Coordinated Universal Time and Mountain Standard Time change clocks on different dates (or one of them not at all), so a difference you hard-code in summer can be an hour wrong in winter. The table on this page is computed from the current tzdata rules, not from a fixed offset.
Is MST on daylight saving time right now?
Mountain Standard Time is currently observing daylight saving — the live abbreviation is MDT (UTC-06:00), not MST.
When does MST next change its clocks?
America/Denver next changes on Sunday, 01 November 2026 at 01:00 local time, when it moves back 60 minutes and the abbreviation becomes MST (UTC-07:00). That is 80 days away. This date comes from the IANA tzdata rules currently in force, so it updates if a government changes the law.
What is the best time to schedule a call between UTC and MST?
There are 3 hours of overlap where both sides are inside a 09:00-18:00 working day. The longest block is 15:00–18:00 UTC, which is 09:00–12:00 MST. Use the calendar buttons above to drop it straight into Google Calendar, Outlook or an .ics file.
Which IANA timezone name should I use for MST in code?
Use America/Denver. Abbreviations like MST are ambiguous and not resolvable by most libraries — Python's ZoneInfo, Java's ZoneId, Go's time.LoadLocation and JavaScript's Intl all expect the IANA name. Hard-coding UTC-06:00 instead will be wrong the moment the rules change.

Keyboard shortcuts

cCopy the ISO 8601 timestamp
uCopy the Unix timestamp
/Focus the timezone search
tToggle light and dark
?This help
EscClose