MT to SGT Time Converter
SGT is 14 hours ahead of MT. The US Mountain states are currently on MDT (UTC-6:00), and SGT is UTC+8:00.
Best Time to Call Between MT and SGT
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 5:00 PM to 10:00 PM MT, which is 7:00 AM to 12:00 PM SGT.
both at work MT only SGT only neither — hours along the strip are MT.
Common Times Converted
MT on the left, SGT on the right.
MT to SGT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| MT | SGT | Working hours |
|---|---|---|
| 12:00 AM | 2:00 PM | SGT only |
| 1:00 AM | 3:00 PM | SGT only |
| 2:00 AM | 4:00 PM | SGT only |
| 3:00 AM | 5:00 PM | — |
| 4:00 AM | 6:00 PM | — |
| 5:00 AM | 7:00 PM | — |
| 6:00 AM | 8:00 PM | — |
| 7:00 AM | 9:00 PM | — |
| 8:00 AM | 10:00 PM | — |
| 9:00 AM | 11:00 PM | MT only |
| 10:00 AM | 12:00 AM next day | MT only |
| 11:00 AM | 1:00 AM next day | MT only |
| 12:00 PM | 2:00 AM next day | MT only |
| 1:00 PM | 3:00 AM next day | MT only |
| 2:00 PM | 4:00 AM next day | MT only |
| 3:00 PM | 5:00 AM next day | MT only |
| 4:00 PM | 6:00 AM next day | MT only |
| 5:00 PM | 7:00 AM next day | — |
| 6:00 PM | 8:00 AM next day | — |
| 7:00 PM | 9:00 AM next day | SGT only |
| 8:00 PM | 10:00 AM next day | SGT only |
| 9:00 PM | 11:00 AM next day | SGT only |
| 10:00 PM | 12:00 PM next day | SGT only |
| 11:00 PM | 1:00 PM next day | SGT only |
What MT and SGT Actually Are
MT — Mountain Time
Denver, Salt Lake City, Calgary, Edmonton — and Phoenix, which does not change its clocks. 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.
Mountain Time contains the most conspicuous daylight saving exception in North America: Arizona, which has opted out since 1968.
SGT — Singapore Time
Singapore. Standing at UTC+8:00 as written, and the region does not change its clocks, so that offset holds all year.
Singapore sits at a longitude that would put it near UTC+7, but moved to UTC+8 in 1982 to align with Malaysia and Hong Kong — a trade decision rather than a solar one.
What This Means in Practice
The date changes mid-working-day
For 7 of the eight hours in a normal MT working day, the equivalent SGT 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
MT changes its clocks and SGT 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 14 hours 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 MT
Cities on SGT
Frequently Asked Questions
What is the time difference between MT and SGT?
SGT is 14 hours ahead of MT. That is the live figure. Taken strictly as written, the gap between MT and SGT is 15 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM MT in SGT?
9:00 AM MT is 11:00 PM SGT.
What are the best hours to schedule a call between MT and SGT?
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 5:00 PM to 10:00 PM MT, which is 7:00 AM to 12:00 PM SGT.
Does the difference between MT and SGT change during the year?
Yes. MT observes daylight saving and SGT does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.