Time zone comparison
Eastern Daylight Time (EDT, UTC-04:00) vs Singapore Time (SGT, UTC+08:00). Right now EDT is 12h behind SGT. EDT is used in New York, New York City and Washington DC while SGT covers Singapore. Use the 24-hour grid below to find a meeting slot both sides will tolerate.
Heads up: these zones diverge on daylight saving.
EDT observes DST while SGT does not, so the gap shifts by an hour twice a year. In January the difference is 13h, in July it is 12h. If you are scheduling across the spring or autumn transitions, double-check the date.
Each row is one hour. Green rows are when both sides are inside 9 AM to 5 PM.
| Hour | EDT (Eastern Daylight Time) | SGT (Singapore Time) | Overlap |
|---|---|---|---|
| 12 AM | 00:00Thu | 12:00Thu | SGT only |
| 1 AM | 01:00Thu | 13:00Thu | SGT only |
| 2 AM | 02:00Thu | 14:00Thu | SGT only |
| 3 AM | 03:00Thu | 15:00Thu | SGT only |
| 4 AM | 04:00Thu | 16:00Thu | SGT only |
| 5 AM | 05:00Thu | 17:00Thu | No overlap |
| 6 AM | 06:00Thu | 18:00Thu | No overlap |
| 7 AM | 07:00Thu | 19:00Thu | No overlap |
| 8 AM | 08:00Thu | 20:00Thu | No overlap |
| 9 AM | 09:00Thu | 21:00Thu | EDT only |
| 10 AM | 10:00Thu | 22:00Thu | EDT only |
| 11 AM | 11:00Thu | 23:00Thu | EDT only |
| 12 PM | 12:00Thu | 00:00Fri | EDT only |
| 1 PM | 13:00Thu | 01:00Fri | EDT only |
| 2 PM | 14:00Thu | 02:00Fri | EDT only |
| 3 PM | 15:00Thu | 03:00Fri | EDT only |
| 4 PM | 16:00Thu | 04:00Fri | EDT only |
| 5 PM | 17:00Thu | 05:00Fri | No overlap |
| 6 PM | 18:00Thu | 06:00Fri | No overlap |
| 7 PM | 19:00Thu | 07:00Fri | No overlap |
| 8 PM | 20:00Thu | 08:00Fri | No overlap |
| 9 PM | 21:00Thu | 09:00Fri | SGT only |
| 10 PM | 22:00Thu | 10:00Fri | SGT only |
| 11 PM | 23:00Thu | 11:00Fri | SGT only |
Eastern Daylight Time (EDT) sits at UTC-04:00 today, while Singapore Time (SGT) is at UTC+08:00. The current gap is 12 hours, with EDT behind SGT. In practical terms, if your morning starts at 9 AM in New York, your counterpart in Singapore is seeing 21:00 on their own watch at that exact moment.
EDT is the working clock for New York, New York City and Washington DC. EDT is the summer version of EST. Same IANA zone, automatic switch on the second Sunday of March and first Sunday of November. SGT covers Singapore. If your team is split between these two regions, the table above is the quickest way to spot the daily overlap window without doing the offset arithmetic in your head.
Daylight saving matters here. Eastern Daylight Time shifts forward an hour on the second Sunday of March (US) or the last Sunday of March (Europe) and back on the first Sunday of November or last Sunday of October. Singapore Time stays on a fixed offset year-round. The IANA tzdata baked into this page handles every transition automatically, so the table reflects the correct wall-clock times for today's date. For dates further out, use the converter linked above and pick the target date explicitly.
Common scheduling traps are easy to avoid here. Pick a wall-clock time on one side, read the matching wall-clock on the other from the table, and write both into the calendar invite, never just the difference. If the meeting falls in the week of a DST changeover and one of these zones shifts, the absolute clock will drift by an hour from what the recipient expects. The table is computed for today's date, so for a future meeting open the converter linked above and pick the exact date.
One last note for asynchronous teams: business-hour overlap is the wrong metric for handoff workflows. If you operate on a follow-the-sun model, you actually want zero overlap, with one team logging off as the other starts. EDT and SGT differ by 12 hours, which gives you partial coverage. Add a zone in between if you want full 24-hour rotation.
EDTDSTvsUTC
Eastern Daylight Time · Coordinated Universal Time
Compare →EDTDSTvsGMT
Eastern Daylight Time · Greenwich Mean Time
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Eastern Daylight Time · Eastern Standard Time
Compare →CSTvsEDTDST
Central Standard Time · Eastern Daylight Time
Compare →EDTDSTvsPST
Eastern Daylight Time · Pacific Standard Time
Compare →EDTDSTvsMST
Eastern Daylight Time · Mountain Standard Time
Compare →EDTDSTvsIST
Eastern Daylight Time · India Standard Time
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Eastern Daylight Time · Japan Standard Time
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