IST to Z Converter
Quick answers
IST is 5 hours and 30 minutes ahead of Z. IST uses GMT +5:30, and Z uses GMT +0 for this comparison.
For example, 5:30 pm IST is 12:00 pm Z. Use the converter above to adjust the date or time and create a shareable meeting link.
Best meeting overlap: 2:30pm-5pm IST, which is 9am-11:30am Z.
Compare IST time with Z time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 5 hours and 30 minutes ahead of Zulu Time Zone
5:30 pm17:30 in IST is 12:00 pm12:00 in Z
IST to Z call time
Best time for a conference call or a meeting is between 2:30pm-5pm in IST which corresponds to 9am-11:30am in Z
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
12:00 pm12:00 Zulu Time Zone (Z). Offset UTC 0:00 hours
5:30 pm17:30 IST / 12:00 pm12:00 Z
| IST | Z |
|---|---|
| 12am (midnight) | 6:30 pm |
| 1am | 7:30 pm |
| 2am | 8:30 pm |
| 3am | 9:30 pm |
| 4am | 10:30 pm |
| 5am | 11:30 pm |
| 6am | 12:30 am |
| 7am | 1:30 am |
| 8am | 2:30 am |
| 9am | 3:30 am |
| 10am | 4:30 am |
| 11am | 5:30 am |
| 12pm (noon) | 6:30 am |
| 1pm | 7:30 am |
| 2pm | 8:30 am |
| 3pm | 9:30 am |
| 4pm | 10:30 am |
| 5pm | 11:30 am |
| 6pm | 12:30 pm |
| 7pm | 1:30 pm |
| 8pm | 2:30 pm |
| 9pm | 3:30 pm |
| 10pm | 4:30 pm |
| 11pm | 5:30 pm |
| 00:00 | 18:30 |
| 01:00 | 19:30 |
| 02:00 | 20:30 |
| 03:00 | 21:30 |
| 04:00 | 22:30 |
| 05:00 | 23:30 |
| 06:00 | 00:30 |
| 07:00 | 01:30 |
| 08:00 | 02:30 |
| 09:00 | 03:30 |
| 10:00 | 04:30 |
| 11:00 | 05:30 |
| 12:00 | 06:30 |
| 13:00 | 07:30 |
| 14:00 | 08:30 |
| 15:00 | 09:30 |
| 16:00 | 10:30 |
| 17:00 | 11:30 |
| 18:00 | 12:30 |
| 19:00 | 13:30 |
| 20:00 | 14:30 |
| 21:00 | 15:30 |
| 22:00 | 16:30 |
| 23:00 | 17:30 |
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
Zulu Time Zone
Offset: Z is 0 hours ahead Greenwich Mean Time (GMT) and is used in Military
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.
Z representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for Z
- Z - short form of 'Zulu'
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone