Chennai Time to JST Converter
JST is 3 hours 30 minutes ahead of IST. 9:00 AM IST = 12:30 PM JST.
JST is 3 hours 30 minutes ahead of IST. To convert Chennai Time to JST, add 3 hours 30 minutes to the Chennai Time time: 9:00 AM IST = 12:30 PM JST.
Chennai Time (Chennai time) is used in Chennai, India. JST (Japan Time) is used in Japan.
Chennai Time to JST time conversion table
Chennai Time to JST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Chennai Time | JST |
|---|---|
| 12:00 AM | 3:30 AM |
| 1:00 AM | 4:30 AM |
| 2:00 AM | 5:30 AM |
| 3:00 AM | 6:30 AM |
| 4:00 AM | 7:30 AM |
| 5:00 AM | 8:30 AM |
| 6:00 AM | 9:30 AM |
| 7:00 AM | 10:30 AM |
| Chennai Time | JST |
|---|---|
| 8:00 AM | 11:30 AM |
| 9:00 AM | 12:30 PM |
| 10:00 AM | 1:30 PM |
| 11:00 AM | 2:30 PM |
| 12:00 PM | 3:30 PM |
| 1:00 PM | 4:30 PM |
| 2:00 PM | 5:30 PM |
| 3:00 PM | 6:30 PM |
| Chennai Time | JST |
|---|---|
| 4:00 PM | 7:30 PM |
| 5:00 PM | 8:30 PM |
| 6:00 PM | 9:30 PM |
| 7:00 PM | 10:30 PM |
| 8:00 PM | 11:30 PM |
| 9:00 PM | 12:30 AM+1 |
| 10:00 PM | 1:30 AM+1 |
| 11:00 PM | 2:30 AM+1 |
Conversion table from Chennai Time to JST for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in JST, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert Chennai Time to JST
Add 3 hours 30 minutes to the Chennai Time time to get JST.
Example: 9:00 AM IST = 12:30 PM JST.
Across midnight: 10:00 PM IST = 1:30 AM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between Chennai Time and JST
The time difference between Chennai Time and JST is 3 hours 30 minutes all year – JST is ahead of IST.
Chennai Time and JST during daylight saving time
- Chennai Time does not observe daylight saving time; it stays on UTC+5:30 all year.
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between Chennai Time and JST
Chennai Time and JST share 4 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:00 AM and 1:30 PM IST lands between 12:30 PM and 5:00 PM JST, inside working hours for both.
Chennai Time to JST FAQ
What is the time difference between Chennai Time and JST?
JST is 3 hours 30 minutes ahead of IST all year. 9:00 AM IST = 12:30 PM JST.
What is 9 AM Chennai Time in JST?
9:00 AM IST is 12:30 PM JST.
What is 12 PM (noon) Chennai Time in JST?
12:00 PM IST is 3:30 PM JST.
Is JST ahead of or behind Chennai Time?
JST is 3 hours 30 minutes ahead of IST, so it is later in JST than in Chennai Time.
Does Chennai Time change for daylight saving time?
No. Chennai Time stays on the same offset all year, so conversions never shift for daylight saving time.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Chennai Time and JST?
Chennai Time and JST share 4 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:00 AM and 1:30 PM IST lands between 12:30 PM and 5:00 PM JST, inside working hours for both.
Related conversions
Convert JST to Chennai Time
Convert Chennai Time to other time zones
Convert other time zones to JST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.