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

EST to SGT Time Converter

SGT is 12 hours ahead of EST. The US East Coast is currently on EDT (UTC-4:00), and SGT is UTC+8:00.

Worth knowing right now. The US East Coast is currently on EDT, not EST, because daylight saving is in effect. The 12 hours above is the gap between those two regions today, which is almost certainly what you want. Taken strictly as written, EST to SGT is 13 hours.
EST
Eastern Standard Time
01:34:44 PM
Sunday, October 11, 2026
UTC-4:00
+12:00
hours difference
⇆ Reverse
SGT
Singapore Time
01:34:44 AM
Monday, October 12, 2026
UTC+8:00

Best Time to Call Between EST 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 7:00 AM to 10:00 AM EST, which is 7:00 PM to 10:00 PM SGT.

both at work EST only SGT only neither  —  hours along the strip are EST.

EST to SGT: Full 24-Hour Conversion Table

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

ESTSGTWorking hours
12:00 AM 12:00 PM SGT only
1:00 AM 1:00 PM SGT only
2:00 AM 2:00 PM SGT only
3:00 AM 3:00 PM SGT only
4:00 AM 4:00 PM SGT only
5:00 AM 5:00 PM —
6:00 AM 6:00 PM —
7:00 AM 7:00 PM —
8:00 AM 8:00 PM —
9:00 AM 9:00 PM EST only
10:00 AM 10:00 PM EST only
11:00 AM 11:00 PM EST only
12:00 PM 12:00 AM next day EST only
1:00 PM 1:00 AM next day EST only
2:00 PM 2:00 AM next day EST only
3:00 PM 3:00 AM next day EST only
4:00 PM 4:00 AM next day EST only
5:00 PM 5:00 AM next day —
6:00 PM 6:00 AM next day —
7:00 PM 7:00 AM next day —
8:00 PM 8:00 AM next day —
9:00 PM 9:00 AM next day SGT only
10:00 PM 10:00 AM next day SGT only
11:00 PM 11:00 AM next day SGT only

What EST and SGT Actually Are

EST — Eastern Standard Time

New York, Toronto, Washington DC, Atlanta, Miami, Boston. Standing at UTC-5:00 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 EST. Australia also uses EST for its own Eastern Standard Time (UTC+10), now more often written AEST.

Eastern Standard Time is only actually in force from early November to mid-March. For the other eight months the same region is on EDT, which is why so many EST conversions are quietly wrong.

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 5 of the eight hours in a normal EST 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

EST 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 12 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.

Frequently Asked Questions

What is the time difference between EST and SGT?

SGT is 12 hours ahead of EST. That is the live figure. Taken strictly as written, the gap between EST and SGT is 13 hours — the two differ because at least one of these regions is currently on daylight saving.

What is 9:00 AM EST in SGT?

9:00 AM EST is 9:00 PM SGT.

What are the best hours to schedule a call between EST 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 7:00 AM to 10:00 AM EST, which is 7:00 PM to 10:00 PM SGT.

Does the difference between EST and SGT change during the year?

Yes. EST 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.

Does EST always mean Eastern Standard Time?

Australia also uses EST for its own Eastern Standard Time (UTC+10), now more often written AEST.

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