Updating current time…
IST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
EAT
UTC+3
2h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

5:30 pm17:30 IST (UTC+5:30), Oct 18, 2026 = 3:00 pm15:00 EAT (UTC+3), Oct 18, 2026

IST is 2 hours and 30 minutes ahead of EAT.

IST and EAT examples

These examples always use IST (UTC+5:30) and EAT (UTC+3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

IST is 2 hours and 30 minutes ahead of EAT.

How the time difference changes

IST is 2 hours and 30 minutes ahead of EAT year-round.

Working hours of 9:00 am to 6:00 pm in IST correspond to 6:30 am to 3:30 pm in EAT.Working hours of 09:00 to 18:00 in IST correspond to 06:30 to 15:30 in EAT.

Compare IST time with EAT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

India Standard Time is 2 hours and 30 minutes ahead of Eastern Africa Time.
5:30 pm17:30 in IST is 3:00 pm15:00 in EAT

IST to EAT call time
Best time for a conference call or a meeting is between 11:30am-6pm11:30-18:00 in IST which corresponds to 9am-3:30pm09:00-15:30 in EAT

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
3:00 pm15:00 Eastern Africa Time (EAT). Offset UTC +3:00 hours

5:30 pm17:30 IST / 3:00 pm15:00 EAT

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
ISTEAT
9:30pm previous day
10:30pm previous day
11:30pm previous day
12:30am
1:30am
2:30am
3:30am
4:30am
5:30am
6:30am
7:30am
8:30am
9:30am
10:30am
11:30am
12:30pm
1:30pm
2:30pm
3:30pm
4:30pm
5:30pm
6:30pm
7:30pm
8:30pm
21:30 previous day
22:30 previous day
23:30 previous day
00:30
01:30
02:30
03:30
04:30
05:30
06:30
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08:30
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India Standard Time

Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

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, Bengaluru, Hyderabad, Ahmedabad.

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; see upcoming clock changes worldwide.

Current time in India: India time now

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0530 - basic
  • +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Calcutta
  • Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2

Eastern Africa Time

Offset: EAT is 3 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Mayotte, Somalia, Tanzania, Uganda

Principal Cities: The largest city in the EAT time zone is Dar es Salaam in Tanzania, with about 5.384 million people. Other major cities in this time zone include Nairobi, Addis Ababa, Mogadishu, Kampala.

Daylight Saving: Clocks in Eastern Africa Time (EAT) do not change for daylight saving time, so EAT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

EAT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +03 - basic short
  • +0300 - basic
  • +03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Charlie - Military abbreviation for EAT
  • C - short form of 'Charlie'
IANA/Olson: Reflects EAT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Addis_Ababa
  • Africa/Asmara
  • Africa/Asmera
  • Africa/Dar_es_Salaam
  • Africa/Djibouti
  • Africa/Kampala
  • Africa/Mogadishu
  • Africa/Nairobi
  • Indian/Antananarivo
  • Indian/Comoro
  • Indian/Mayotte
Time zones with the GMT +3 offset:
  • EEST - Eastern European Summer Time
  • MSK - Moscow Standard Time
  • AST - Arabia Standard Time
  • C - Charlie Time Zone
  • EAT - Eastern Africa Time
  • FET - Further Eastern European Time
  • IDT - Israel Daylight Time
  • TRT - Turkey Time