SGT to NST
-11h 30mSGT
SGTSOURCENST
NSTGreen rows indicate typical business hours (9 AM - 5 PM)
SGT and NST on the World Map
The map below highlights the SGT (Singapore Standard Time) and NST (Newfoundland 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.
NST – Newfoundland Standard Time
UTC-03:30Newfoundland Standard Time (NST) is a unique half-hour offset time zone in Canada, 3.5 hours behind UTC.
- •NST is one of only a few half-hour offset time zones in the world.
- •Newfoundland joined Canada in 1949 and kept its unique time zone.
- •St. John's is the easternmost city in North America.
SGT to NST Time Difference – Complete Guide
SGT runs on Singapore Standard Time (SGT) at UTC+08:00. NST runs on Newfoundland Standard Time (NST) at UTC-03:30. That puts SGT 11 hours 30 minutes behind NST — a difference of -11h 30m at the current offsets.
In practice, when it is 9:00 AM in SGT it is 9:30 PM in NST on the previous day. Midnight in SGT is 12:30 PM in NST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
SGT to NST time conversion table
| SGT (SGT) | NST (NST) | Day |
|---|---|---|
| 12:00 AM | 12:30 PM | previous day |
| 6:00 AM | 6:30 PM | previous day |
| 7:00 AM | 7:30 PM | previous day |
| 8:00 AM | 8:30 PM | previous day |
| 9:00 AM | 9:30 PM | previous day |
| 12:00 PM | 12:30 AM | same day |
| 3:00 PM | 3:30 AM | same day |
| 5:00 PM | 5:30 AM | same day |
| 6:00 PM | 6:30 AM | same day |
| 9:00 PM | 9:30 AM | same day |
Why people convert SGT to NST time
- Scheduling a call from SGT to NST: a 10:00 AM start in SGT lands at 10:30 PM in NST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h 30m gap: SGT and NST 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 NST is 9:30 PM in SGT.
- Coordinating a SGT-based team with NST contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a -11h 30m gap is not.
- With a -11h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week SGT takes the early slot, the next week NST 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 NST (Newfoundland Standard Time)
Newfoundland Standard Time (NST) is one of the few half-hour offset time zones in the world. It covers the island of Newfoundland in Canada and is 30 minutes ahead of Atlantic Standard Time. This unique offset exists because Newfoundland was an independent country until 1949.
Best time to call between SGT and NST
With a -11h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. NST opens at 9:00 AM NST, which is 9:30 PM in SGT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
SGT and NST have no shared working hours because of the -11h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
SGT is 11 hours 30 minutes behind NST (SGT UTC+08:00 → NST UTC-03:30). 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
NST
☀ Currently in DST
Standard: UTC-03:30 · DST: UTC-02:30
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 NST?
SGT (SGT, UTC+08:00) is 11 hours 30 minutes behind NST (NST, UTC-03:30). The gap is currently -11h 30m.
How do I convert SGT time to NST time?
Add -11h 30m to SGT local time. For example, 9:00 AM in SGT is 9:30 PM in NST (previous day).
What time is it in NST right now?
NST uses NST at UTC-03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -11h 30m offset from SGT.
What is the best time to call NST from SGT?
There is no shared working-hours window because of the -11h 30m gap. The closest option is 1:00 PM in SGT, which is 1:30 AM in NST.
Which is behind, SGT or NST?
SGT is 11 hours 30 minutes behind NST. When it is 12:00 PM in SGT it is 12:30 AM in NST.
Does daylight saving time affect the SGT–NST difference?
Neither zone observes daylight saving time, so the -11h 30m offset between SGT and NST 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 NST?
Not normally. The -11h 30m gap only pushes the date over the previous day.
What is the time difference between SGT and NST?
NST is -11h 30m from SGT.
What timezone is SGT in?
SGT operates on its local timezone.
What timezone is NST in?
NST 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 NST timezone?
Major cities in the NST timezone include St. John's, Corner Brook, Mount Pearl.
What is the UTC offset for NST?
Newfoundland Standard Time (NST) is at UTC-03:30. During daylight saving time, it shifts to NDT.
What should I know about the NST timezone?
NST is one of only a few half-hour offset time zones in the world. Newfoundland joined Canada in 1949 and kept its unique time zone.
When is it midnight in SGT, what time is it in NST?
When it is 12:00 AM (midnight) in SGT (SGT), it is -11h 30m later in NST (NST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More SGT time conversions
- sgt to singapore
- sgt to new york
- sgt to london
- sgt to dubai
- sgt to tokyo
- sgt to sydney
- sgt to los angeles
- sgt to paris
- sgt to delhi
- sgt to mumbai
- sgt to berlin
- sgt to hong kong
- sgt to toronto
- sgt to kathmandu
- new york to sgt
- london to sgt
- dubai to sgt
- tokyo to sgt
- singapore to sgt
- sydney to sgt
- los angeles to sgt
- paris to sgt
- delhi to sgt
- mumbai to sgt
- berlin to sgt
- hong kong to sgt
- toronto to sgt
- kathmandu to sgt
See every conversion from SGT →·See every conversion from NST →