IST Ist to UTC to IST
Time Difference
Iran Standard Time is 3 hours and 30 minutes ahead of Universal Time Coordinated and 2 hours behind India Standard Time
7:30 pm19:30 in IST is 4:00 pm16:00 in UTC and is 9:30 pm21:30 in IST
IST to UTC call time
Best time for a conference call or a meeting is between 11:30am-6pm in IST which corresponds to 8am-2:30pm in UTC
IST to IST call time
Best time for a conference call or a meeting is between 8am-4pm in IST which corresponds to 10am-6pm in IST
7:30 pm19:30 Iran Standard Time (IST). Offset UTC +3:30 hours
4:00 pm16:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
9:30 pm21:30 India Standard Time (IST). Offset UTC +5:30 hours
7:30 pm19:30 IST / 4:00 pm16:00 UTC / 9:30 pm21:30 IST
| IST | UTC | IST |
|---|---|---|
| 12am (midnight) | 8:30 pm | 2am |
| 1am | 9:30 pm | 3am |
| 2am | 10:30 pm | 4am |
| 3am | 11:30 pm | 5am |
| 4am | 12:30 am | 6am |
| 5am | 1:30 am | 7am |
| 6am | 2:30 am | 8am |
| 7am | 3:30 am | 9am |
| 8am | 4:30 am | 10am |
| 9am | 5:30 am | 11am |
| 10am | 6:30 am | 12pm (noon) |
| 11am | 7:30 am | 1pm |
| 12pm (noon) | 8:30 am | 2pm |
| 1pm | 9:30 am | 3pm |
| 2pm | 10:30 am | 4pm |
| 3pm | 11:30 am | 5pm |
| 4pm | 12:30 pm | 6pm |
| 5pm | 1:30 pm | 7pm |
| 6pm | 2:30 pm | 8pm |
| 7pm | 3:30 pm | 9pm |
| 8pm | 4:30 pm | 10pm |
| 9pm | 5:30 pm | 11pm |
| 10pm | 6:30 pm | 12am (midnight) |
| 11pm | 7:30 pm | 1am |
| 0:00 | 20:30 | 2:00 |
| 1:00 | 21:30 | 3:00 |
| 2:00 | 22:30 | 4:00 |
| 3:00 | 23:30 | 5:00 |
| 4:00 | 0:30 | 6:00 |
| 5:00 | 1:30 | 7:00 |
| 6:00 | 2:30 | 8:00 |
| 7:00 | 3:30 | 9:00 |
| 8:00 | 4:30 | 10:00 |
| 9:00 | 5:30 | 11:00 |
| 10:00 | 6:30 | 12:00 |
| 11:00 | 7:30 | 13:00 |
| 12:00 | 8:30 | 14:00 |
| 13:00 | 9:30 | 15:00 |
| 14:00 | 10:30 | 16:00 |
| 15:00 | 11:30 | 17:00 |
| 16:00 | 12:30 | 18:00 |
| 17:00 | 13:30 | 19:00 |
| 18:00 | 14:30 | 20:00 |
| 19:00 | 15:30 | 21:00 |
| 20:00 | 16:30 | 22:00 |
| 21:00 | 17:30 | 23:00 |
| 22:00 | 18:30 | 0:00 |
| 23:00 | 19:30 | 1:00 |
Iran Standard Time
Offset: IST is 3 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Israel
Principal Cities: The largest city in the IST timezone is Jerusalem from Israel with population about 801,000 people. Other major cities in the area are West Jerusalem, Haifa, Tel Aviv, Ashdod
IST representations, usage and related time zones
- +0330 - basic
- +03:30 - extended
- +0330 - sign character (+) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates three hour and thirty minutes time differences to the east of the zero meridian.
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30
Universal Time Coordinated
Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal
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.
UTC 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 zero hour and zero minutes time differences of the zero meridian.
- Zulu - Military abbreviation for UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- 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
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