SGT to EST
-13hSGT
SGTSOURCEEST
ESTGreen rows indicate typical business hours (9 AM - 5 PM)
SGT and EST on the World Map
The map below highlights the SGT (Singapore Standard Time) and EST (Eastern Standard 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.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
Understanding the -13h Gap: SGT vs EST
SGT runs on Singapore Standard Time (SGT) at UTC+08:00. EST runs on Eastern Standard Time (EST) at UTC-05:00. That puts SGT 13 hours behind EST — a difference of -13h at the current offsets.
In practice, when it is 9:00 AM in SGT it is 8:00 PM in EST on the previous day. Midnight in SGT is 11:00 AM in EST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
SGT to EST time conversion table
| SGT (SGT) | EST (EST) | Day |
|---|---|---|
| 12:00 AM | 11:00 AM | previous day |
| 6:00 AM | 5:00 PM | previous day |
| 7:00 AM | 6:00 PM | previous day |
| 8:00 AM | 7:00 PM | previous day |
| 9:00 AM | 8:00 PM | previous day |
| 12:00 PM | 11:00 PM | previous day |
| 3:00 PM | 2:00 AM | same day |
| 5:00 PM | 4:00 AM | same day |
| 6:00 PM | 5:00 AM | same day |
| 9:00 PM | 8:00 AM | same day |
Why people convert SGT to EST time
- Scheduling a call from SGT to EST: a 10:00 AM start in SGT lands at 9:00 PM in EST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -13h gap: SGT and EST 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 EST is 8:00 PM in SGT.
- Keeping family and friends in sync: knowing that 8:00 PM in SGT is 7:00 AM in EST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a -13h gap is not.
- With a -13h gap there is no shared 9-to-5 window, so alternate the early start: one week SGT takes the early slot, the next week EST 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 EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
Best time to call between SGT and EST
With a -13h offset there is no overlap inside a normal 9 AM – 5 PM day. EST opens at 9:00 AM EST, which is 8:00 PM in SGT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
SGT and EST have no shared working hours because of the -13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
SGT is 13 hours behind EST (SGT UTC+08:00 → EST UTC-05:00). 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
EST
☀ 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 EST?
SGT (SGT, UTC+08:00) is 13 hours behind EST (EST, UTC-05:00). The gap is currently -13h.
How do I convert SGT time to EST time?
Add -13h to SGT local time. For example, 9:00 AM in SGT is 8:00 PM in EST (previous day).
What time is it in EST right now?
EST uses EST at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -13h offset from SGT.
What is the best time to call EST from SGT?
There is no shared working-hours window because of the -13h gap. The closest option is 1:00 PM in SGT, which is 12:00 AM in EST.
Which is behind, SGT or EST?
SGT is 13 hours behind EST. When it is 12:00 PM in SGT it is 11:00 PM in EST.
Does daylight saving time affect the SGT–EST difference?
Neither zone observes daylight saving time, so the -13h offset between SGT and EST 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 EST?
Sometimes. The -13h gap is large enough that 8:00 PM or later in SGT already falls on the in EST.
What is the time difference between SGT and EST?
EST is -13h from SGT.
What timezone is SGT in?
SGT operates on its local timezone.
What timezone is EST in?
EST 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 EST timezone?
Major cities in the EST timezone include New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EST?
Eastern Standard Time (EST) is at UTC-05:00. During daylight saving time, it shifts to EDT.
What should I know about the EST timezone?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
When is it midnight in SGT, what time is it in EST?
When it is 12:00 AM (midnight) in SGT (SGT), it is -13h later in EST (EST).
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