BJT to IST Converter & Meeting Planner
Quick answer: 9:00 AM BJT = 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 Beijing Time (BJT) and Indian Standard Time (IST)? You need to account for the standard time difference. Indian Standard Time is normally 2.5 hours behind Beijing Time. Whether you are coordinating between teams in Beijing and Shanghai 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 BJT = 9:30 PM IST. The full 24-hour BJT to IST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM BJT = 12:30 PM IST.
| BJT 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 Beijing
For most work calls, compare the normal business day in Beijing (BJT) with the business day in Mumbai (IST). BJT 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 BJT, which corresponds to 9:30 AM - 3:30 PM IST. This window sits inside the typical BJT workday (9:00 AM - 6:00 PM) and the IST workday (9:30 AM - 6:30 PM).
- DST Safety: Neither BJT nor IST uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Shanghai Stock Exchange (SSE): 09:30-15:00 local time in Shanghai.
- 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 BJT and IST?
During standard time, Indian Standard Time is 2.5 hours behind Beijing Time.
Does China observe Daylight Saving Time?
Mainland China abolished Daylight Saving Time in 1991 and has remained permanently fixed at UTC+8:00 ever since, with no seasonal clock adjustment at any point in the year. This means the offset between Beijing or Shanghai and any DST-observing country shifts by one hour twice annually when those countries change their clocks — but BJT itself never moves.
How many time zones are there in China?
Despite spanning a geographical width that would naturally encompass five separate time zones — from the eastern coast at roughly UTC+8 to the western reaches of Xinjiang near UTC+6 or even UTC+5 — China officially mandates a single unified time zone, Beijing Time (BJT) at UTC+8:00, across the entire country. This policy has been in place since 1949 and applies to all 34 provincial-level administrative regions without exception.
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.