Updating current time…
IST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ReunionRET
UTC+4
1h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

5:30 pm17:30 IST (UTC+5:30), Oct 23, 2026 = 4:00 pm16:00 RET (UTC+4), Oct 23, 2026

IST is 1 hour and 30 minutes ahead of Piton Saint-Leu.

How the time difference changes

IST is 1 hour and 30 minutes ahead of Piton Saint-Leu year-round.

Working hours of 9:00 am to 6:00 pm in IST correspond to 7:30 am to 4:30 pm in Piton Saint-Leu.Working hours of 09:00 to 18:00 in IST correspond to 07:30 to 16:30 in Piton Saint-Leu.

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

Time Difference

India Standard Time is 1 hour and 30 minutes ahead of RET (Reunion Time).
5:30 pm17:30 in IST is 4:00 pm16:00 in Piton Saint-Leu, Reunion

IST to Piton Saint-Leu call time
Best time for a conference call or a meeting is between 10:30am-6pm10:30-18:00 in IST which corresponds to 9am-4:30pm09:00-16:30 in Piton Saint-Leu

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
4:00 pm16:00 RET (Reunion Time) (Piton Saint-Leu, Reunion). Offset UTC +4:00 hours

5:30 pm17:30 IST / 4:00 pm16:00 Piton Saint-Leu, Reunion

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Hourly time comparison
ISTPiton Saint-Leu, Reunion
10:30pm previous day
11:30pm previous day
12:30am
1:30am
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4:30am
5:30am
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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
9:30pm
22:30 previous day
23:30 previous day
00:30
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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

Piton Saint-Leu Time Zone and Facts

Time Zone

Abbreviation / Offset
RET – Reunion Time, UTC+4 (no daylight saving time)

Piton Saint-Leu Facts

Country
Reunion
Population
29,278
Currency
Euro (EUR)
Geographic Coordinates
21° 13' S Latitude / 55° 18' E Longitude
International Dialing Code
+262