IST to Y Converter
Quick answers
IST is 17 hours and 30 minutes ahead of Y. IST uses GMT +5:30, and Y uses GMT -12 for this comparison.
For example, 5:30 pm IST is 12:00 am Y. Use the converter above to adjust the date or time and create a shareable meeting link.
Best meeting overlap: 9am-10:30am IST, which is 3:30pm-5pm Y (previous day).
Compare IST time with Y time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 17 hours and 30 minutes ahead of Yankee Time Zone
5:30 pm17:30 in IST is 12:00 am00:00 in Y
IST to Y call time
Best time for a conference call or a meeting is between 9am-10:30am in IST which corresponds to 3:30pm-5pm in Y (previous day)
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
12:00 am00:00 Yankee Time Zone (Y). Offset UTC -12:00 hours
5:30 pm17:30 IST / 12:00 am00:00 Y
| IST | Y |
|---|---|
| 12am (midnight) | 6:30 am |
| 1am | 7:30 am |
| 2am | 8:30 am |
| 3am | 9:30 am |
| 4am | 10:30 am |
| 5am | 11:30 am |
| 6am | 12:30 pm |
| 7am | 1:30 pm |
| 8am | 2:30 pm |
| 9am | 3:30 pm |
| 10am | 4:30 pm |
| 11am | 5:30 pm |
| 12pm (noon) | 6:30 pm |
| 1pm | 7:30 pm |
| 2pm | 8:30 pm |
| 3pm | 9:30 pm |
| 4pm | 10:30 pm |
| 5pm | 11:30 pm |
| 6pm | 12:30 am |
| 7pm | 1:30 am |
| 8pm | 2:30 am |
| 9pm | 3:30 am |
| 10pm | 4:30 am |
| 11pm | 5:30 am |
| 00:00 | 06:30 |
| 01:00 | 07:30 |
| 02:00 | 08:30 |
| 03:00 | 09:30 |
| 04:00 | 10:30 |
| 05:00 | 11:30 |
| 06:00 | 12:30 |
| 07:00 | 13:30 |
| 08:00 | 14:30 |
| 09:00 | 15:30 |
| 10:00 | 16:30 |
| 11:00 | 17:30 |
| 12:00 | 18:30 |
| 13:00 | 19:30 |
| 14:00 | 20:30 |
| 15:00 | 21:30 |
| 16:00 | 22:30 |
| 17:00 | 23:30 |
| 18:00 | 00:30 |
| 19:00 | 01:30 |
| 20:00 | 02:30 |
| 21:00 | 03:30 |
| 22:00 | 04:30 |
| 23:00 | 05:30 |
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Kolkata, Chennai.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
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 an offset of five hours and thirty minutes 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
Yankee Time Zone
Offset: Y is 12 hours behind Greenwich Mean Time (GMT) and is used in Military
Daylight Saving: Clocks in Yankee Time Zone (Y) do not change for daylight saving time, so Y stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
Y representations, usage and related time zones
- -12 - basic short
- -1200 - basic
- -12:00 - extended
- -1200 - sign character (-) followed by a four digit time providing hours (12) and minutes (00) of the offset. Indicates an offset of twelve hours to the west of the zero meridian.
- Yankee - Military abbreviation for Y
- Y - short form of 'Yankee'