IST to CAT Converter
Quick answers
Selected conversion
The selected date and time will appear here when the converter loads.
IST and CAT examples
These examples always use IST (UTC+5:30) and CAT (UTC+2). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
IST is 3 hours and 30 minutes ahead of CAT.
How the time difference changes
IST is 3 hours and 30 minutes ahead of CAT year-round.
Working hours of 9:00 am to 5:00 pm in IST correspond to 5:30 am to 1:30 pm in CAT.
Compare IST time with CAT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 3 hours and 30 minutes ahead of Central Africa Time
5:30 pm17:30 in IST is 2:00 pm14:00 in CAT
IST to CAT call time
Best time for a conference call or a meeting is between 12:30pm-5pm in IST which corresponds to 9am-1:30pm in CAT
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
2:00 pm14:00 Central Africa Time (CAT). Offset UTC +2:00 hours
5:30 pm17:30 IST / 2:00 pm14:00 CAT
| IST | CAT |
|---|---|
| 12am (midnight) | 8:30 pm |
| 1am | 9:30 pm |
| 2am | 10:30 pm |
| 3am | 11:30 pm |
| 4am | 12:30 am |
| 5am | 1:30 am |
| 6am | 2:30 am |
| 7am | 3:30 am |
| 8am | 4:30 am |
| 9am | 5:30 am |
| 10am | 6:30 am |
| 11am | 7:30 am |
| 12pm (noon) | 8:30 am |
| 1pm | 9:30 am |
| 2pm | 10:30 am |
| 3pm | 11:30 am |
| 4pm | 12:30 pm |
| 5pm | 1:30 pm |
| 6pm | 2:30 pm |
| 7pm | 3:30 pm |
| 8pm | 4:30 pm |
| 9pm | 5:30 pm |
| 10pm | 6:30 pm |
| 11pm | 7:30 pm |
| 00:00 | 20:30 |
| 01:00 | 21:30 |
| 02:00 | 22:30 |
| 03:00 | 23:30 |
| 04:00 | 00:30 |
| 05:00 | 01:30 |
| 06:00 | 02:30 |
| 07:00 | 03:30 |
| 08:00 | 04:30 |
| 09:00 | 05:30 |
| 10:00 | 06:30 |
| 11:00 | 07:30 |
| 12:00 | 08:30 |
| 13:00 | 09:30 |
| 14:00 | 10:30 |
| 15:00 | 11:30 |
| 16:00 | 12:30 |
| 17:00 | 13:30 |
| 18:00 | 14:30 |
| 19:00 | 15:30 |
| 20:00 | 16:30 |
| 21:00 | 17:30 |
| 22:00 | 18:30 |
| 23:00 | 19:30 |
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
Central Africa Time
Offset: CAT is 2 hours ahead Greenwich Mean Time (GMT) and is used in Africa
Countries using this time zone: Burundi, Botswana, Congo (Dem. Rep.), Malawi, Mozambique, Namibia, Rwanda, Sudan, South Sudan, Zambia, Zimbabwe
Principal Cities: The largest city in the CAT time zone is Lubumbashi in Democratic Republic of the Congo, with about 2.222 million people. Other major cities in this time zone include Lusaka, Mbuji Mayi, Khartoum, Omdurman.
Daylight Saving: Clocks in Central Africa Time (CAT) do not change for daylight saving time, so CAT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

CAT representations, usage and related time zones
- +02 - basic short
- +0200 - basic
- +02:00 - extended
- +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the east of the zero meridian.
- Bravo - Military abbreviation for CAT
- B - short form of 'Bravo'
- Africa/Blantyre
- Africa/Bujumbura
- Africa/Gaborone
- Africa/Harare
- Africa/Juba
- Africa/Khartoum
- Africa/Kigali
- Africa/Lubumbashi
- Africa/Lusaka
- Africa/Maputo
- Africa/Windhoek
- CEST - Central European Summer Time
- EET - Eastern European Time
- MESZ - Mitteleuropäische Sommerzeit
- B - Bravo Time Zone
- CAT - Central Africa Time
- IST - Israel Standard Time
- SAST - South Africa Standard Time
- WAST - West Africa Summer Time
