NPT to MST Time Converter
MST is 11 hours and 45 minutes behind NPT. NPT is UTC+5:45, and The US Mountain states are currently on MDT (UTC-6:00).
Best Time to Call Between NPT and MST
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 10:00 AM NPT, which is 7:15 PM to 10:15 PM MST.
both at work NPT only MST only neither — hours along the strip are NPT.
Common Times Converted
NPT on the left, MST on the right.
NPT to MST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| NPT | MST | Working hours |
|---|---|---|
| 12:00 AM | 12:15 PM prev day | MST only |
| 1:00 AM | 1:15 PM prev day | MST only |
| 2:00 AM | 2:15 PM prev day | MST only |
| 3:00 AM | 3:15 PM prev day | MST only |
| 4:00 AM | 4:15 PM prev day | MST only |
| 5:00 AM | 5:15 PM prev day | — |
| 6:00 AM | 6:15 PM prev day | — |
| 7:00 AM | 7:15 PM prev day | — |
| 8:00 AM | 8:15 PM prev day | — |
| 9:00 AM | 9:15 PM prev day | NPT only |
| 10:00 AM | 10:15 PM prev day | NPT only |
| 11:00 AM | 11:15 PM prev day | NPT only |
| 12:00 PM | 12:15 AM | NPT only |
| 1:00 PM | 1:15 AM | NPT only |
| 2:00 PM | 2:15 AM | NPT only |
| 3:00 PM | 3:15 AM | NPT only |
| 4:00 PM | 4:15 AM | NPT only |
| 5:00 PM | 5:15 AM | — |
| 6:00 PM | 6:15 AM | — |
| 7:00 PM | 7:15 AM | — |
| 8:00 PM | 8:15 AM | — |
| 9:00 PM | 9:15 AM | MST only |
| 10:00 PM | 10:15 AM | MST only |
| 11:00 PM | 11:15 AM | MST only |
What NPT and MST Actually Are
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.
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.
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 3 of the eight hours in a normal NPT working day, the equivalent MST 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.
Major Cities in Each Zone
Cities on NPT
Cities on MST
Frequently Asked Questions
What is the time difference between NPT and MST?
MST is 11 hours and 45 minutes behind NPT. That is the live figure. Taken strictly as written, the gap between NPT and MST 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 NPT in MST?
9:00 AM NPT is 9:15 PM the previous day MST.
What are the best hours to schedule a call between NPT and MST?
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 10:00 AM NPT, which is 7:15 PM to 10:15 PM MST.
Does the difference between NPT and MST 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 NPT always mean Nepal Time?
Nepal sits at UTC+5:45 — one of only two zones in the world on a 45-minute offset.
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.