SGT to EDT
-12hSGT
SGTSOURCEEDT
EDTGreen rows indicate typical business hours (9 AM - 5 PM)
SGT and EDT on the World Map
The map below highlights the SGT (Singapore Standard Time) and EDT (Eastern Daylight Time) timezone regions across the globe.
SGT – Singapore Standard Time
UTC+08:00Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.
- •Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
- •Singapore does not observe daylight saving time.
- •The Singapore Exchange (SGX) operates on SGT.
EDT – Eastern Daylight Time
UTC-04:00Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.
- •EDT is observed from the second Sunday of March to the first Sunday of November.
- •During EDT, the US East Coast is only 4 hours behind London (instead of 5).
- •Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.
Comparing Time Zones: SGT and EDT
SGT runs on Singapore Standard Time (SGT) at UTC+08:00. EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. That puts SGT 12 hours behind EDT — a difference of -12h at the current offsets.
In practice, when it is 9:00 AM in SGT it is 9:00 PM in EDT on the previous day. Midnight in SGT is 12:00 PM in EDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
SGT to EDT time conversion table
| SGT (SGT) | EDT (EDT) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | previous day |
| 6:00 AM | 6:00 PM | previous day |
| 7:00 AM | 7:00 PM | previous day |
| 8:00 AM | 8:00 PM | previous day |
| 9:00 AM | 9:00 PM | previous day |
| 12:00 PM | 12:00 AM | same day |
| 3:00 PM | 3:00 AM | same day |
| 5:00 PM | 5:00 AM | same day |
| 6:00 PM | 6:00 AM | same day |
| 9:00 PM | 9:00 AM | same day |
Why people convert SGT to EDT time
- Scheduling a call from SGT to EDT: a 10:00 AM start in SGT lands at 10:00 PM in EDT the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -12h gap: SGT and EDT have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in EDT is 9:00 PM in SGT.
- Watching a live event or market open: SGT viewers need 9:00 PM in EDT to catch a 9:00 AM start there, and 12:00 PM if the event is anchored to SGT.
- Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a -12h gap is not.
- With a -12h gap there is no shared 9-to-5 window, so alternate the early start: one week SGT takes the early slot, the next week EDT does.
About SGT (Singapore Standard Time)
Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.
About EDT (Eastern Daylight Time)
Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.
Best time to call between SGT and EDT
With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. EDT opens at 9:00 AM EDT, which is 9:00 PM in SGT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
SGT and EDT have no shared working hours because of the -12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
SGT is 12 hours behind EDT (SGT UTC+08:00 → EDT UTC-04:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
SGT
Does not observe DST
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between SGT and EDT?
SGT (SGT, UTC+08:00) is 12 hours behind EDT (EDT, UTC-04:00). The gap is currently -12h.
How do I convert SGT time to EDT time?
Add -12h to SGT local time. For example, 9:00 AM in SGT is 9:00 PM in EDT (previous day).
What time is it in EDT right now?
EDT uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -12h offset from SGT.
What is the best time to call EDT from SGT?
There is no shared working-hours window because of the -12h gap. The closest option is 1:00 PM in SGT, which is 1:00 AM in EDT.
Which is behind, SGT or EDT?
SGT is 12 hours behind EDT. When it is 12:00 PM in SGT it is 12:00 AM in EDT.
Does daylight saving time affect the SGT–EDT difference?
Neither zone observes daylight saving time, so the -12h offset between SGT and EDT is fixed all year.
Which other cities share SGT's time zone?
SGT also covers Singapore.
Which countries use SGT, SGT's zone?
SGT is used in Singapore.
Is there a day difference between SGT and EDT?
Sometimes. The -12h gap is large enough that 8:00 PM or later in SGT already falls on the in EDT.
What is the time difference between SGT and EDT?
EDT is -12h from SGT.
What timezone is SGT in?
SGT operates on its local timezone.
What timezone is EDT in?
EDT operates on its local timezone.
Which countries use SGT (Singapore Standard Time)?
SGT is used in Singapore.
Does SGT observe daylight saving time?
No, SGT does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about SGT?
Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00). Singapore does not observe daylight saving time.
Which cities are in the EDT timezone?
Major cities in the EDT timezone include New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EDT?
Eastern Daylight Time (EDT) is at UTC-04:00. During daylight saving time, it shifts to EST.
What should I know about the EDT timezone?
EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).
When is it midnight in SGT, what time is it in EDT?
When it is 12:00 AM (midnight) in SGT (SGT), it is -12h later in EDT (EDT).
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