IST to BJT Converter & Meeting Planner
Quick answer: 9:00 AM IST = 11:30 AM BJT (fixed +05:30 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Indian Standard Time (IST) and Beijing Time (BJT)? You need to account for the standard time difference. Beijing Time is normally 2.5 hours ahead of Indian Standard Time. Whether you are coordinating between teams in Mumbai and New Delhi and Beijing and Shanghai, 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 IST = 2:30 AM BJT. The full 24-hour IST to BJT table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM IST = 5:30 PM BJT.
| IST Time | BJT Time |
|---|---|
| 12:00 AM (00:00) | 2:30 AM (02:30) |
| 1:00 AM (01:00) | 3:30 AM (03:30) |
| 2:00 AM (02:00) | 4:30 AM (04:30) |
| 3:00 AM (03:00) | 5:30 AM (05:30) |
| 4:00 AM (04:00) | 6:30 AM (06:30) |
| 5:00 AM (05:00) | 7:30 AM (07:30) |
| 6:00 AM (06:00) | 8:30 AM (08:30) |
| 7:00 AM (07:00) | 9:30 AM (09:30) |
| 8:00 AM (08:00) | 10:30 AM (10:30) |
| 9:00 AM (09:00) | 11:30 AM (11:30) |
| 10:00 AM (10:00) | 12:30 PM (12:30) |
| 11:00 AM (11:00) | 1:30 PM (13:30) |
| 12:00 PM (12:00) | 2:30 PM (14:30) |
| 1:00 PM (13:00) | 3:30 PM (15:30) |
| 2:00 PM (14:00) | 4:30 PM (16:30) |
| 3:00 PM (15:00) | 5:30 PM (17:30) |
| 4:00 PM (16:00) | 6:30 PM (18:30) |
| 5:00 PM (17:00) | 7:30 PM (19:30) |
| 6:00 PM (18:00) | 8:30 PM (20:30) |
| 7:00 PM (19:00) | 9:30 PM (21:30) |
| 8:00 PM (20:00) | 10:30 PM (22:30) |
| 9:00 PM (21:00) | 11:30 PM (23:30) |
| 10:00 PM (22:00) | 12:30 AM (00:30)+1 day |
| 11:00 PM (23:00) | 1:30 AM (01:30)+1 day |
Best time to call Beijing from Mumbai
For most work calls, compare the normal business day in Mumbai (IST) with the business day in Beijing (BJT). IST commonly covers South Asia, while BJT is mainly associated with East 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 9:30 AM - 3:30 PM IST, which corresponds to 12:00 PM - 6:00 PM BJT. This window sits inside the typical IST workday (9:30 AM - 6:30 PM) and the BJT workday (9:00 AM - 6:00 PM).
- DST Safety: Neither IST nor BJT uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Bombay Stock Exchange (BSE): 09:15-15:30 local time in Mumbai.
- Shanghai Stock Exchange (SSE): 09:30-15:00 local time in Shanghai.
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Frequently Asked Questions
What is the time difference between IST and BJT?
During standard time, Beijing Time is 2.5 hours ahead of Indian Standard Time.
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.
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.