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Zone to zone

GMT to SGT — Singapore Time is 8 hours ahead

Singapore Time (SGT) is 8 hours ahead of Greenwich Mean Time (GMT) while both are on standard time. Once daylight saving starts the gap becomes 7 hours ahead, so any recurring meeting between these two regions moves by an hour twice a year.

Standard time

8 hours ahead

Applies while neither zone is on daylight saving — broadly November to March in the northern hemisphere.

Daylight saving

7 hours ahead

Applies while the clocks are forward. This pair does not keep a constant gap, so check the date.

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How the two zones line up

Greenwich Mean Time sits at UTC+0 in winter and UTC+1 in summer. Singapore Time sits at UTC+8 all year. The difference between those two offsets is the number you add or subtract.

Daylight saving

The overlap is narrow — roughly an hour or two. Protect that window for anything that genuinely needs both parties live.

Where this conversion gets used

  • Supplier and factory calls
  • offshore delivery teams
  • shipping cut-offs
  • remote hiring interviews

GMT to SGT — every hour

Both columns are computed from the IANA database, so they follow the real transition dates.

GMTSGT — standardSGT — daylight saving
12:00 am8:00 am7:00 am
1:00 am9:00 am8:00 am
2:00 am10:00 am9:00 am
3:00 am11:00 am10:00 am
4:00 am12:00 pm11:00 am
5:00 am1:00 pm12:00 pm
6:00 am2:00 pm1:00 pm
7:00 am3:00 pm2:00 pm
8:00 am4:00 pm3:00 pm
9:00 am5:00 pm4:00 pm
10:00 am6:00 pm5:00 pm
11:00 am7:00 pm6:00 pm
12:00 pm8:00 pm7:00 pm
1:00 pm9:00 pm8:00 pm
2:00 pm10:00 pm9:00 pm
3:00 pm11:00 pm10:00 pm
4:00 pm12:00 am (next day)11:00 pm
5:00 pm1:00 am (next day)12:00 am (next day)
6:00 pm2:00 am (next day)1:00 am (next day)
7:00 pm3:00 am (next day)2:00 am (next day)
8:00 pm4:00 am (next day)3:00 am (next day)
9:00 pm5:00 am (next day)4:00 am (next day)
10:00 pm6:00 am (next day)5:00 am (next day)
11:00 pm7:00 am (next day)6:00 am (next day)

Questions people ask

8 hours ahead during standard time, and 7 hours ahead while daylight saving is running.

Related conversions

CET to GSTEST to BRTEST to SGTGMT to GST

All conversions →

Booking something recurring?

A fixed clock time drifts when either side changes its clocks. Our guides explain how to stop that happening.

Read the DST guidePlan a meeting