Convert any time between MST and NPT, with a full 24-hour table and the hours when both sides are actually at work.

MST to NPT Time Converter

NPT is 11 hours and 45 minutes ahead of MST. The US Mountain states are currently on MDT (UTC-6:00), and NPT is UTC+5:45.

Worth knowing right now. The US Mountain states are currently on MDT, not MST, because daylight saving is in effect. The 11 hours and 45 minutes above is the gap between those two regions today, which is almost certainly what you want. Taken strictly as written, MST to NPT is 12 hours and 45 minutes.
MST
Mountain Standard Time
09:05:51 AM
Sunday, October 11, 2026
UTC-6:00
+11:45
hours difference
⇆ Reverse
NPT
Nepal Time
08:50:51 PM
Sunday, October 11, 2026
UTC+5:45

Best Time to Call Between MST and NPT

Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 11:00 AM MST, which is 6:45 PM to 10:45 PM NPT.

both at work MST only NPT only neither  —  hours along the strip are MST.

MST to NPT: Full 24-Hour Conversion Table

Shaded rows are working hours; the darker shade marks the hours when both zones are at work.

MSTNPTWorking hours
12:00 AM 11:45 AM NPT only
1:00 AM 12:45 PM NPT only
2:00 AM 1:45 PM NPT only
3:00 AM 2:45 PM NPT only
4:00 AM 3:45 PM NPT only
5:00 AM 4:45 PM NPT only
6:00 AM 5:45 PM —
7:00 AM 6:45 PM —
8:00 AM 7:45 PM —
9:00 AM 8:45 PM MST only
10:00 AM 9:45 PM MST only
11:00 AM 10:45 PM MST only
12:00 PM 11:45 PM MST only
1:00 PM 12:45 AM next day MST only
2:00 PM 1:45 AM next day MST only
3:00 PM 2:45 AM next day MST only
4:00 PM 3:45 AM next day MST only
5:00 PM 4:45 AM next day —
6:00 PM 5:45 AM next day —
7:00 PM 6:45 AM next day —
8:00 PM 7:45 AM next day —
9:00 PM 8:45 AM next day —
10:00 PM 9:45 AM next day NPT only
11:00 PM 10:45 AM next day NPT only

What MST and NPT 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.

NPT — Nepal Time

Kathmandu, Pokhara. Standing at UTC+5:45 as written, and the region does not change its clocks, so that offset holds all year. Nepal sits at UTC+5:45 — one of only two zones in the world on a 45-minute offset.

Nepal is deliberately 15 minutes ahead of India, an offset chosen so the country keeps its own time rather than sharing its neighbor's.

What This Means in Practice

Expect times on the half hour

NPT sits on a 45-minute offset rather than a whole hour, so a round number on one side is never a round number on the other. A 9:00 meeting becomes 45 minutes past the hour, which is exactly the detail calendar invitations get wrong when someone converts in their head.

The date changes mid-working-day

For 4 of the eight hours in a normal MST working day, the equivalent NPT time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.

This gap is not fixed

MST changes its clocks and NPT 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.

Nearly opposite sides of the clock

At 11 hours and 45 minutes apart, one side's morning is the other side's night. Handing work over at the end of a shift usually beats trying to get both parties in the same call.

Frequently Asked Questions

What is the time difference between MST and NPT?

NPT is 11 hours and 45 minutes ahead of MST. That is the live figure. Taken strictly as written, the gap between MST and NPT is 12 hours and 45 minutes — the two differ because at least one of these regions is currently on daylight saving.

What is 9:00 AM MST in NPT?

9:00 AM MST is 8:45 PM NPT.

What are the best hours to schedule a call between MST and NPT?

Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 7:00 AM to 11:00 AM MST, which is 6:45 PM to 10:45 PM NPT.

Does the difference between MST and NPT change during the year?

Yes. MST observes daylight saving and NPT 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.

Does NPT always mean Nepal Time?

Nepal sits at UTC+5:45 — one of only two zones in the world on a 45-minute offset.

Converting between two time zones regularly? Bookmark this page — the clocks update live and the table follows daylight saving automatically.