HKT to IST Converter & Meeting Planner
Quick answer: 9:00 AM HKT = 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 Hong Kong Time (HKT) and Indian Standard Time (IST)? You need to account for the standard time difference. Indian Standard Time is normally 2.5 hours behind Hong Kong Time. Whether you are coordinating between teams in Hong Kong and Kowloon 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 HKT = 9:30 PM IST. The full 24-hour HKT to IST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM HKT = 12:30 PM IST.
| HKT 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 Hong Kong
For most work calls, compare the normal business day in Hong Kong (HKT) with the business day in Mumbai (IST). HKT commonly covers East Asia, 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 HKT, which corresponds to 9:30 AM - 3:30 PM IST. This window sits inside the typical HKT workday (9:00 AM - 6:00 PM) and the IST workday (9:30 AM - 6:30 PM).
- DST Safety: Neither HKT nor IST uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Hong Kong Stock Exchange (HKEX): 09:30-16:00 local time in Hong Kong.
- 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 HKT and IST?
During standard time, Indian Standard Time is 2.5 hours behind Hong Kong Time.
Does Hong Kong observe Daylight Saving Time?
Hong Kong does not observe Daylight Saving Time and has not done so since 1979, remaining permanently fixed at UTC+8:00 throughout the year. This means the offset between Hong Kong and any DST-observing country shifts by one hour twice annually when those countries change their clocks — but HKT itself never moves.
Are HKT and SGT the same time?
Yes, Hong Kong Time (HKT) and Singapore Time (SGT) share the identical UTC+8:00 offset, and neither territory observes Daylight Saving Time, making the two cities permanently synchronized on the same clock year-round. The same alignment holds with mainland China (CST), Taiwan, Malaysia (MYT), and Western Australia (AWST) — placing Hong Kong and Singapore at the heart of the world's largest permanent UTC+8 economic bloc.
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.