Indian Standard Time

Indian Standard time (IST) is the time zone observed throughout India, with a time offset of UTC+05:30. India does not observe daylight saving time or other seasonal adjustments. In military and aviation time IST is designated E* ("Echo-Star").[1] It is indicated as Asia/Kolkata in the IANA time zone database.

Indian Standard Time
Time zone
UTC offset
ISTUTC+05:30
Current time
14:03, 25 September 2021 IST [refresh]
Observance of DST
DST is not observed in this time zone.

Indian Standard Time is calculated on the basis of 82°30' E longitude from the clock tower in Mirzapur near Prayagraj Uttar Pradesh, which is situated approximately on the corresponding longitude reference line.[citation needed]