SGT to IST Converter & Meeting Planner
Quick answer: 9:00 AM SGT = 6:30 AM IST (fixed +08:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Singapore Time (SGT) and Indian Standard Time (IST)? You need to account for the standard time difference. Indian Standard Time is normally 2.5 hours behind Singapore Time. Whether you are coordinating between teams in Singapore and Mumbai and New Delhi, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM SGT = 9:30 PM IST. The full 24-hour SGT to IST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM SGT = 12:30 PM IST.
| SGT Time | IST Time |
|---|---|
| 12:00 AM (00:00) | 9:30 PM (21:30)-1 day |
| 1:00 AM (01:00) | 10:30 PM (22:30)-1 day |
| 2:00 AM (02:00) | 11:30 PM (23:30)-1 day |
| 3:00 AM (03:00) | 12:30 AM (00:30) |
| 4:00 AM (04:00) | 1:30 AM (01:30) |
| 5:00 AM (05:00) | 2:30 AM (02:30) |
| 6:00 AM (06:00) | 3:30 AM (03:30) |
| 7:00 AM (07:00) | 4:30 AM (04:30) |
| 8:00 AM (08:00) | 5:30 AM (05:30) |
| 9:00 AM (09:00) | 6:30 AM (06:30) |
| 10:00 AM (10:00) | 7:30 AM (07:30) |
| 11:00 AM (11:00) | 8:30 AM (08:30) |
| 12:00 PM (12:00) | 9:30 AM (09:30) |
| 1:00 PM (13:00) | 10:30 AM (10:30) |
| 2:00 PM (14:00) | 11:30 AM (11:30) |
| 3:00 PM (15:00) | 12:30 PM (12:30) |
| 4:00 PM (16:00) | 1:30 PM (13:30) |
| 5:00 PM (17:00) | 2:30 PM (14:30) |
| 6:00 PM (18:00) | 3:30 PM (15:30) |
| 7:00 PM (19:00) | 4:30 PM (16:30) |
| 8:00 PM (20:00) | 5:30 PM (17:30) |
| 9:00 PM (21:00) | 6:30 PM (18:30) |
| 10:00 PM (22:00) | 7:30 PM (19:30) |
| 11:00 PM (23:00) | 8:30 PM (20:30) |
Best time to call Mumbai from Singapore
For most work calls, compare the normal business day in Singapore (SGT) with the business day in Mumbai (IST). SGT commonly covers Southeast Asia, Asia-Pacific, while IST is mainly associated with South Asia.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 12:00 PM - 6:00 PM SGT, which corresponds to 9:30 AM - 3:30 PM IST. This window sits inside the typical SGT workday (9:00 AM - 6:00 PM) and the IST workday (9:30 AM - 6:30 PM).
- DST Safety: Neither SGT nor IST uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Singapore Exchange (SGX): 09:00-17:00 local time in Singapore.
- Bombay Stock Exchange (BSE): 09:15-15:30 local time in Mumbai.
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Frequently Asked Questions
What is the time difference between SGT and IST?
During standard time, Indian Standard Time is 2.5 hours behind Singapore Time.
Does Singapore use Daylight Saving Time?
Singapore does not observe Daylight Saving Time and has no policy to introduce it, remaining fixed at UTC+8:00 every day of the year. Singapore's location approximately one degree north of the equator means daylight hours remain nearly constant across the seasons, removing the original rationale for DST entirely.
Which other major countries share Singapore's time zone?
China, Hong Kong, Taiwan, Malaysia, and Western Australia all operate on the same UTC+8:00 offset as Singapore, though each uses its own regional designation — CST, HKT, CST, MYT, and AWST respectively. Collectively, the UTC+8 bloc represents one of the world's most economically significant time bands.
Does India observe Daylight Saving Time (DST)?
India does not observe Daylight Saving Time and has not done so since 1945. IST remains fixed at UTC+5:30 every day of the year, meaning the offset between India and any DST-observing country shifts by one hour twice annually when those countries change their clocks.
Why does IST have a 30-minute offset?
India chose the 82.5° East meridian — which passes through Mirzapur in Uttar Pradesh — as its central reference longitude, as it bisects the subcontinent geographically. That meridian sits exactly 5 hours and 30 minutes ahead of the Prime Meridian in Greenwich, producing the UTC+5:30 offset that has defined IST since 1906.