IST to JST Converter – Convert India Time to Japan Standard Time
India Standard Time (IST) and Japan Standard Time (JST) are common time zones in Asia. If you work with Japanese teams or set up online meetings, you'll need to change IST to JST. This converter gives the correct time, which helps communication and keeps you from scheduling meetings at the wrong time.
What is IST?
IST, or Indian Standard Time, is UTC +5:30. India and Sri Lanka use it as their main time zone. IST doesn't change for daylight saving. Big cities like Delhi, Mumbai, Kolkata, Bengaluru, Chennai, and Hyderabad use IST all year.
What is JST?
JST, or Japan Standard Time, is UTC +9. All of Japan uses it, like Tokyo, Osaka, Kyoto, and Yokohama. JST doesn't change for daylight saving time, so the time is the same all year.
Time Difference Between IST and JST
The standard difference between IST and JST is 3 hours 30 minutes. JST is ahead of IST. For example:
- 6:00 AM IST → 9:30 AM JST
- 12:00 PM IST → 3:30 PM JST
- 9:00 PM IST → 12:30 AM JST (next day)
IST to JST Conversion Table
| IST | JST |
|---|---|
| 6:00 AM | 9:30 AM |
| 12:00 PM | 3:30 PM |
| 6:00 PM | 9:30 PM |
| 10:00 PM | 1:30 AM (next day) |
Why Convert IST to JST?
IST to JST conversion is commonly needed for:
- Remote team meetings with Japan
- Online webinars or international training
- Business calls across Asia
- Travel planning and flight schedules
- Online gaming and streaming events
How to Convert IST to JST Manually
Manual conversion is simple:
JST = IST + 3 hours 30 minutes
Example: 2:00 PM IST → 5:30 PM JST.
Daylight Saving Time
Neither IST nor JST observes daylight saving time, so the time difference of 3 hours 30 minutes remains consistent throughout the year.
Frequently Asked Questions (FAQ)
1. Which time zone is ahead, IST or JST?
JST is 3 hours 30 minutes ahead of IST.
2. Does IST observe daylight saving?
No, India does not observe daylight saving time.
3. Does JST observe daylight saving?
No, Japan does not observe daylight saving time.
4. How do I convert JST to IST?
Subtract 3 hours 30 minutes from JST to get IST.
5. Why is IST to JST conversion important?
It ensures accurate scheduling for business, education, and online communication between India and Japan.
Using an IST to JST Converter helps you stay on time, coordinate efficiently, and avoid confusion when working across time zones in Asia.