IST to JST to Helsinki, Finland
Time Difference
India Standard Time is 3 hours and 30 minutes behind Japan Standard Time and 2 hours and 30 minutes ahead of EEST (Eastern European Summer Time)
4:00 pm16:00 in IST is 7:30 pm19:30 in JST and is 1:30 pm13:30 in Helsinki, Finland
IST to JST call time
Best time for a conference call or a meeting is between 8am-2:30pm in IST which corresponds to 11:30am-6pm in JST
IST to Helsinki call time
Best time for a conference call or a meeting is between 10:30am-6pm in IST which corresponds to 8am-3:30pm in Helsinki
4:00 pm16:00 India Standard Time (IST). Offset UTC +5:30 hours
7:30 pm19:30 Japan Standard Time (JST). Offset UTC +9:00 hours
1:30 pm13:30 EEST (Eastern European Summer Time) (Helsinki, Finland). Offset UTC +3:00 hours
4:00 pm16:00 IST / 7:30 pm19:30 JST / 1:30 pm13:30 Helsinki, Finland
| IST | JST | Helsinki, Finland |
|---|---|---|
| 12am (midnight) | 3:30 am | 9:30 pm |
| 1am | 4:30 am | 10:30 pm |
| 2am | 5:30 am | 11:30 pm |
| 3am | 6:30 am | 12:30 am |
| 4am | 7:30 am | 1:30 am |
| 5am | 8:30 am | 2:30 am |
| 6am | 9:30 am | 3:30 am |
| 7am | 10:30 am | 4:30 am |
| 8am | 11:30 am | 5:30 am |
| 9am | 12:30 pm | 6:30 am |
| 10am | 1:30 pm | 7:30 am |
| 11am | 2:30 pm | 8:30 am |
| 12pm (noon) | 3:30 pm | 9:30 am |
| 1pm | 4:30 pm | 10:30 am |
| 2pm | 5:30 pm | 11:30 am |
| 3pm | 6:30 pm | 12:30 pm |
| 4pm | 7:30 pm | 1:30 pm |
| 5pm | 8:30 pm | 2:30 pm |
| 6pm | 9:30 pm | 3:30 pm |
| 7pm | 10:30 pm | 4:30 pm |
| 8pm | 11:30 pm | 5:30 pm |
| 9pm | 12:30 am | 6:30 pm |
| 10pm | 1:30 am | 7:30 pm |
| 11pm | 2:30 am | 8:30 pm |
| 0:00 | 3:30 | 21:30 |
| 1:00 | 4:30 | 22:30 |
| 2:00 | 5:30 | 23:30 |
| 3:00 | 6:30 | 0:30 |
| 4:00 | 7:30 | 1:30 |
| 5:00 | 8:30 | 2:30 |
| 6:00 | 9:30 | 3:30 |
| 7:00 | 10:30 | 4:30 |
| 8:00 | 11:30 | 5:30 |
| 9:00 | 12:30 | 6:30 |
| 10:00 | 13:30 | 7:30 |
| 11:00 | 14:30 | 8:30 |
| 12:00 | 15:30 | 9:30 |
| 13:00 | 16:30 | 10:30 |
| 14:00 | 17:30 | 11:30 |
| 15:00 | 18:30 | 12:30 |
| 16:00 | 19:30 | 13:30 |
| 17:00 | 20:30 | 14:30 |
| 18:00 | 21:30 | 15:30 |
| 19:00 | 22:30 | 16:30 |
| 20:00 | 23:30 | 17:30 |
| 21:00 | 0:30 | 18:30 |
| 22:00 | 1:30 | 19:30 |
| 23:00 | 2:30 | 20:30 |
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: India
Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai
Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30
Japan Standard Time
Offset: JST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Japan
Principal Cities: The largest city in the JST timezone is Tokyo from Japan with population about 8.337 million people. Other major cities in the area are Yokohama, Osaka shi, Nagoya shi, Sapporo
Daylight Saving: Japan Standard Time (JST) is not adjusted for daylight saving therefore JST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Japan Standard Time remains the same
JST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates nine hour and zero minutes time differences to the east of the zero meridian.
- India - Military abbreviation for JST
- I - short form of 'India'
- Asia/Tokyo
- Japan
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
Helsinki Information
Time Zone
EET - Eastern European Time
+2:00 hours during Eastern European Time.
Sunday, March 30, 2025 at 3:00 am local time. DST starts annually the on last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 30, 2025, 4:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Sunday, October 26, 2025 at 4:00 am local time. DST ends annually the on last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 26, 2025, 3:00 am local standard time instead. Also called Fall Back or switch to Winter Time.