SGT to MDT Time Converter

Mountain Daylight Time (MDT) is currently 14 hours behind Singapore Time (SGT). SGT is UTC+8 and MDT is UTC-6. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.

Singapore Time (SGT)
--:--:--
(UTC+8)
Mountain Daylight Time (MDT)
--:--:--
(UTC-6)

Best Time for a Call

There is no overlap between 9:00 AM and 5:00 PM office hours in these two zones. Stretching to early mornings and evenings, the workable window runs from 9:00 PM to 9:00 PM in SGT, which is 7:00 AM to 7:00 AM in MDT. One side ends up outside normal hours, so alternating who takes the awkward slot is a fair way to handle recurring calls.

Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.

Hour by Hour: SGT to MDT

SGTMDT
12:00 AM10:00 AM-1 day
1:00 AM11:00 AM-1 day
2:00 AM12:00 PM-1 day
3:00 AM1:00 PM-1 day
4:00 AM2:00 PM-1 day
5:00 AM3:00 PM-1 day
6:00 AM4:00 PM-1 day
7:00 AM5:00 PM-1 day
8:00 AM6:00 PM-1 day
9:00 AM7:00 PM-1 day
10:00 AM8:00 PM-1 day
11:00 AM9:00 PM-1 day
12:00 PM10:00 PM-1 day
1:00 PM11:00 PM-1 day
2:00 PM12:00 AM
3:00 PM1:00 AM
4:00 PM2:00 AM
5:00 PM3:00 AM
6:00 PM4:00 AM
7:00 PM5:00 AM
8:00 PM6:00 AM
9:00 PM7:00 AM
10:00 PM8:00 AM
11:00 PM9:00 AM

Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.

Does the Difference Change During the Year?

SGT and MDT are fixed offsets, so the difference between them never changes.

SGT is UTC+8 with no daylight saving. Hong Kong, China, Malaysia, and the Philippines share this offset.

MDT is UTC-6, the summer counterpart of MST, used from March to November.

Frequently Asked Questions

How many hours behind is MDT compared to SGT?

MDT is currently 14 hours behind SGT. SGT and MDT are fixed offsets, so the difference between them never changes.

What time is 9:00 AM in SGT in MDT?

9:00 AM in SGT is 7:00 PM in MDT on the previous day.

What is the best time for a call between SGT and MDT?

There is no overlap between 9:00 AM and 5:00 PM office hours in these two zones. Stretching to early mornings and evenings, the workable window runs from 9:00 PM to 9:00 PM in SGT, which is 7:00 AM to 7:00 AM in MDT. One side ends up outside normal hours, so alternating who takes the awkward slot is a fair way to handle recurring calls.