IST to IOT Converter
Quick answers
Selected conversion
The selected date and time will appear here when the converter loads.
IST and IOT examples
These examples always use IST (UTC+5:30) and IOT (UTC+6). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
IST is 30 minutes behind IOT.
How the time difference changes
IST is 30 minutes behind IOT year-round.
Working hours of 9:00 am to 5:00 pm in IST correspond to 9:30 am to 5:30 pm in IOT.
Compare IST time with IOT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 0 hours and 30 minutes behind Indian Chagos Time
5:30 pm17:30 in IST is 6:00 pm18:00 in IOT
IST to IOT call time
Best time for a conference call or a meeting is between 9am-4:30pm in IST which corresponds to 9:30am-5pm in IOT
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
6:00 pm18:00 Indian Chagos Time (IOT). Offset UTC +6:00 hours
5:30 pm17:30 IST / 6:00 pm18:00 IOT
| IST | IOT |
|---|---|
| 12am (midnight) | 12:30 am |
| 1am | 1:30 am |
| 2am | 2:30 am |
| 3am | 3:30 am |
| 4am | 4:30 am |
| 5am | 5:30 am |
| 6am | 6:30 am |
| 7am | 7:30 am |
| 8am | 8:30 am |
| 9am | 9:30 am |
| 10am | 10:30 am |
| 11am | 11:30 am |
| 12pm (noon) | 12:30 pm |
| 1pm | 1:30 pm |
| 2pm | 2:30 pm |
| 3pm | 3:30 pm |
| 4pm | 4:30 pm |
| 5pm | 5:30 pm |
| 6pm | 6:30 pm |
| 7pm | 7:30 pm |
| 8pm | 8:30 pm |
| 9pm | 9:30 pm |
| 10pm | 10:30 pm |
| 11pm | 11:30 pm |
| 00:00 | 00:30 |
| 01:00 | 01:30 |
| 02:00 | 02:30 |
| 03:00 | 03:30 |
| 04:00 | 04:30 |
| 05:00 | 05:30 |
| 06:00 | 06:30 |
| 07:00 | 07:30 |
| 08:00 | 08:30 |
| 09:00 | 09:30 |
| 10:00 | 10:30 |
| 11:00 | 11:30 |
| 12:00 | 12:30 |
| 13:00 | 13:30 |
| 14:00 | 14:30 |
| 15:00 | 15:30 |
| 16:00 | 16:30 |
| 17:00 | 17:30 |
| 18:00 | 18:30 |
| 19:00 | 19:30 |
| 20:00 | 20:30 |
| 21:00 | 21:30 |
| 22:00 | 22:30 |
| 23:00 | 23:30 |
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, Chennai, Kolkata.
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
Indian Chagos Time
Offset: IOT is 6 hours ahead Greenwich Mean Time (GMT) and is used in Indian Ocean
Countries using this time zone: British Indian Ocean Territory
Daylight Saving: Clocks in Indian Chagos Time (IOT) do not change for daylight saving time, so IOT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
IOT representations, usage and related time zones
- +06 - basic short
- +0600 - basic
- +06:00 - extended
- +0600 - sign character (+) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the east of the zero meridian.
- Foxtrot - Military abbreviation for IOT
- F - short form of 'Foxtrot'
- ALMT - Alma-Ata Time
- BST - Bangladesh Standard Time
- BDT - Bangladesh Time
- BTT - Bhutan Time
- F - Foxtrot Time Zone
- IOT - Indian Chagos Time
- KGT - Kyrgyzstan Time
- OMST - Omsk Standard Time
- QYZT - Qyzylorda Time
- XJT - Xinjiang Time
- YEKST - Yekaterinburg Summer Time