Updating current time…
IST
India Standard Time
GMT +5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IDT/IST
Israel Daylight Time
GMT +3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IST is not used on this date.

This converter uses IDT (UTC+3), as in Jerusalem.

Quick answers

Selected conversion

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

IST is 2 hours and 30 minutes ahead of IDT.

IST and IST examples

These examples always use IST (UTC+5:30) and IST (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 IST.

How the time difference changes

For most of the year, IST is 2 hours and 30 minutes ahead of IDT Israel. At other times of the year, IST is 3 hours and 30 minutes ahead of IST Israel.

For most of the year, working hours of 9:00 am to 5:00 pm in IST correspond to 6:30 am to 2:30 pm in IDT Israel. At other times of the year, working hours of 9:00 am to 5:00 pm in IST correspond to 5:30 am to 1:30 pm in IST Israel.For most of the year, working hours of 09:00 to 17:00 in IST correspond to 06:30 to 14:30 in IDT Israel. At other times of the year, working hours of 09:00 to 17:00 in IST correspond to 05:30 to 13:30 in IST Israel.

Compare IST time with IST 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 Israel Daylight Time.
5:30 pm17:30 in IST is 3:00 pm15:00 in IDT

IST to IDT call time
Best time for a conference call or a meeting is between 11:30am-5pm11:30-17:00 in IST which corresponds to 9am-2:30pm09:00-14:30 in IDT

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
3:00 pm15:00 Israel Daylight Time (IDT). Offset UTC +3:00 hours

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

ISTIDT
12:00am9:30pm
1:00am10:30pm
2:00am11:30pm
3:00am12:30am
4:00am1:30am
5:00am2:30am
6:00am3:30am
7:00am4:30am
8:00am5:30am
9:00am6:30am
10:00am7:30am
11:00am8:30am
12:00pm9:30am
1:00pm10:30am
2:00pm11:30am
3:00pm12:30pm
4:00pm1:30pm
5:00pm2:30pm
6:00pm3:30pm
7:00pm4:30pm
8:00pm5:30pm
9:00pm6:30pm
10:00pm7:30pm
11:00pm8:30pm
00:0021:30
01:0022:30
02:0023:30
03:0000:30
04:0001:30
05:0002:30
06:0003:30
07:0004:30
08:0005:30
09:0006:30
10:0007:30
11:0008:30
12:0009:30
13:0010:30
14:0011:30
15:0012:30
16:0013:30
17:0014:30
18:0015:30
19:0016:30
20:0017:30
21:0018:30
22:0019:30
23:0020:30

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; see upcoming clock changes worldwide.

IST Time Zone Geo Map
IST timezone map

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

Israel Standard Time

Offset: IST is 2 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Israel

Principal Cities: The largest city in the IST time zone is Jerusalem in Israel, with about 971,800 people. Other major cities in this time zone include Tel Aviv, West Jerusalem, Haifa, Ashdod.

IST Time Zone Geo Map
IST timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Israel Daylight Time (IDT).

Daylight saving time clock moves forward for one hourEnd: Israel Standard Time (IST) ended on Friday, March 27, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Friday, March 27, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Friday of March.

Daylight saving time clock moves back for one hourStart: Israel Standard Time (IST) starts on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00. Standard time starts annually on the last Sunday of October.

See upcoming clock changes worldwide.

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Bravo - Military abbreviation for IST
  • B - short form of 'Bravo'
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Jerusalem
  • Asia/Tel_Aviv
  • Israel
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
Time zones with the GMT +2 offset:
  • 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