Sri Lanka to NST
-9hSri Lanka
ISTSOURCENST
NSTGreen rows indicate typical business hours (9 AM - 5 PM)
IST and NST on the World Map
The map below highlights the IST (India Standard Time) and NST (Newfoundland Standard Time) timezone regions across the globe.
IST – India Standard Time
UTC+05:30India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.
- •India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
- •India uses a single time zone despite spanning 30° of longitude.
- •IST is one of only a handful of time zones with a 30-minute offset.
- •IST is the most populous single time zone in the world with over 1.4 billion people.
- •The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.
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.
Sri Lanka to NST Time Difference – Complete Guide
Sri Lanka runs on India Standard Time (IST) at UTC+05:30. NST runs on Newfoundland Standard Time (NST) at UTC-03:30. That puts Sri Lanka 9 hours behind NST — a difference of -9h at the current offsets.
In practice, when it is 9:00 AM in Sri Lanka it is 12:00 AM in NST. Midnight in Sri Lanka is 3:00 PM in NST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Sri Lanka to NST time conversion table
| Sri Lanka (IST) | NST (NST) | Day |
|---|---|---|
| 12:00 AM | 3:00 PM | previous day |
| 6:00 AM | 9:00 PM | previous day |
| 7:00 AM | 10:00 PM | previous day |
| 8:00 AM | 11:00 PM | previous day |
| 9:00 AM | 12:00 AM | same day |
| 12:00 PM | 3:00 AM | same day |
| 3:00 PM | 6:00 AM | same day |
| 5:00 PM | 8:00 AM | same day |
| 6:00 PM | 9:00 AM | same day |
| 9:00 PM | 12:00 PM | same day |
Why people convert Sri Lanka to NST time
- Scheduling a call from Sri Lanka to NST: a 10:00 AM start in Sri Lanka lands at 1:00 AM in NST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -9h gap: Sri Lanka 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 12:00 AM in Sri Lanka.
- Coordinating a Sri Lanka-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 IST" is unambiguous; "3 PM" across a -9h gap is not.
- With a -9h gap there is no shared 9-to-5 window, so alternate the early start: one week Sri Lanka takes the early slot, the next week NST does.
About IST (India Standard Time)
India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.
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 Sri Lanka and NST
With a -9h offset there is no overlap inside a normal 9 AM – 5 PM day. NST opens at 9:00 AM NST, which is 12:00 AM in Sri Lanka, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Sri Lanka and NST have no shared working hours because of the -9h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Sri Lanka is 9 hours behind NST (IST UTC+05:30 → 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
Sri Lanka
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 Sri Lanka and NST?
Sri Lanka (IST, UTC+05:30) is 9 hours behind NST (NST, UTC-03:30). The gap is currently -9h.
How do I convert Sri Lanka time to NST time?
Add -9h to Sri Lanka local time. For example, 9:00 AM in Sri Lanka is 12:00 AM in NST.
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 -9h offset from Sri Lanka.
What is the best time to call NST from Sri Lanka?
There is no shared working-hours window because of the -9h gap. The closest option is 1:00 PM in Sri Lanka, which is 4:00 AM in NST.
Which is behind, Sri Lanka or NST?
Sri Lanka is 9 hours behind NST. When it is 12:00 PM in Sri Lanka it is 3:00 AM in NST.
Do Sri Lanka and NST use different time zones?
Sri Lanka (Sri Lanka) uses IST at UTC+05:30, while NST uses NST at UTC-03:30. The IANA identifiers are Asia/Colombo and America/St_Johns.
Does daylight saving time affect the Sri Lanka–NST difference?
Neither zone observes daylight saving time, so the -9h offset between Sri Lanka and NST is fixed all year.
Which other cities share Sri Lanka's time zone?
IST also covers Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad and 4 more.
Which countries use IST, Sri Lanka's zone?
IST is used in India, Sri Lanka.
Is there a day difference between Sri Lanka and NST?
Not normally. The -9h gap only pushes the date over the previous day.
What is the time difference between Sri Lanka and NST?
NST is -9h from Sri Lanka.
What timezone is Sri Lanka in?
Sri Lanka operates on its local timezone.
What timezone is NST in?
NST operates on its local timezone.
Which countries use IST (India Standard Time)?
IST is used in India, Sri Lanka.
Does IST observe daylight saving time?
No, IST does not observe daylight saving time and remains at UTC+05:30 year-round.
What are some interesting facts about IST?
India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT. India uses a single time zone despite spanning 30° of longitude.
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 Sri Lanka, what time is it in NST?
When it is 12:00 AM (midnight) in Sri Lanka (IST), it is -9h later in NST (NST).
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