Singapore to IST
-2h 30mSingapore
SGTSOURCEIST
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
SGT and IST on the World Map
The map below highlights the SGT (Singapore Standard Time) and IST (India 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.
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.
About Singapore
WikipediaSingapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
The city-state has the world's highest percentage of millionaires, with 1 in 6 households.
Singapore vs IST: Offsets, DST and Best Call Times
Singapore runs on Singapore Standard Time (SGT) at UTC+08:00. IST runs on India Standard Time (IST) at UTC+05:30. That puts Singapore 2 hours 30 minutes behind IST — a difference of -2h 30m at the current offsets.
In practice, when it is 9:00 AM in Singapore it is 6:30 AM in IST. Midnight in Singapore is 9:30 PM in IST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Singapore to IST time conversion table
| Singapore (SGT) | IST (IST) | Day |
|---|---|---|
| 12:00 AM | 9:30 PM | previous day |
| 6:00 AM | 3:30 AM | same day |
| 7:00 AM | 4:30 AM | same day |
| 8:00 AM | 5:30 AM | same day |
| 9:00 AM | 6:30 AM | same day |
| 12:00 PM | 9:30 AM | same day |
| 3:00 PM | 12:30 PM | same day |
| 5:00 PM | 2:30 PM | same day |
| 6:00 PM | 3:30 PM | same day |
| 9:00 PM | 6:30 PM | same day |
Why people convert Singapore to IST time
- Scheduling a call from Singapore to IST: a 10:00 AM start in Singapore lands at 7:30 AM in IST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Singapore and IST are inside the 9-to-5 working day between 11:30 AM and 5:00 PM SGT time (9:00 AM–2:30 PM IST). That is roughly 5 hours 30 minutes of usable overlap.
- Coordinating a Singapore-based team with IST 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 -2h 30m gap is not.
- Block 11:30 AM–5:00 PM SGT as the recurring meeting window if you work primarily from Singapore and need IST colleagues present.
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 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.
Best time to call between Singapore and IST
Both Singapore and IST sit inside the 9 AM – 5 PM working day between 11:30 AM–5:00 PM SGT, which is 9:00 AM–2:30 PM IST. That gives roughly 5 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Singapore and IST share 5 hours of working-hours overlap (11:30 AM–5:00 PM SGT), so scheduling a live meeting is straightforward.
Singapore is 2 hours 30 minutes behind IST (SGT UTC+08:00 → IST UTC+05:30). The shared working window is 11:30 AM–5:00 PM SGT. Remember to re-check around daylight-saving transitions.
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 Singapore and IST?
Singapore (SGT, UTC+08:00) is 2 hours 30 minutes behind IST (IST, UTC+05:30). The gap is currently -2h 30m.
How do I convert Singapore time to IST time?
Add -2h 30m to Singapore local time. For example, 9:00 AM in Singapore is 6:30 AM in IST.
What time is it in IST right now?
IST uses IST at UTC+05:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h 30m offset from Singapore.
What is the best time to call IST from Singapore?
Call between 11:30 AM and 5:00 PM SGT — that maps to 9:00 AM–2:30 PM IST and keeps both parties inside the working day.
Which is behind, Singapore or IST?
Singapore is 2 hours 30 minutes behind IST. When it is 12:00 PM in Singapore it is 9:30 AM in IST.
Do Singapore and IST use different time zones?
Singapore (Singapore) uses SGT at UTC+08:00, while IST uses IST at UTC+05:30. The IANA identifiers are Asia/Singapore and Asia/Kolkata.
Does daylight saving time affect the Singapore–IST difference?
Neither zone observes daylight saving time, so the -2h 30m offset between Singapore and IST is fixed all year.
Which other cities share Singapore's time zone?
SGT also covers Singapore.
Which countries use SGT, Singapore's zone?
SGT is used in Singapore.
Is there a day difference between Singapore and IST?
Not normally. The -2h 30m gap only pushes the date over the previous day.
What is the time difference between Singapore and IST?
IST is -2h 30m from Singapore.
What timezone is Singapore in?
Singapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
What timezone is IST in?
IST operates on its local timezone.
What are the business hours in Singapore?
Standard business hours in Singapore are 9:00 AM - 6:00 PM SGT.
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 IST timezone?
Major cities in the IST timezone include Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad.
What is the UTC offset for IST?
India Standard Time (IST) is at UTC+05:30.
What should I know about the IST timezone?
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.
When is it midnight in Singapore, what time is it in IST?
When it is 12:00 AM (midnight) in Singapore (SGT), it is -2h 30m later in IST (IST).
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