IST to UYST Converter

Updating current time…
IST
India Standard Time
UTC+5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
UYT/UYST
Uruguay Time
UTC−3
8h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
UYST is not used on this date.

This converter uses UYT (UTC−3), as in Montevideo.

Keep UYST (UTC−2)

Quick answers

Selected conversion

5:30 pm17:30 IST (UTC+5:30), Oct 26, 2026 = 9:00 am09:00 UYT (UTC-3), Oct 26, 2026

IST is 8 hours and 30 minutes ahead of UYT.

IST and UYST examples

These examples always use IST (UTC+5:30) and UYST (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 7 hours and 30 minutes ahead of UYST.

How the time difference changes

IST is 8 hours and 30 minutes ahead of UYT year-round.

Working hours of 9:00 am to 6:00 pm in IST correspond to 12:30 am to 9:30 am in UYT.Working hours of 09:00 to 18:00 in IST correspond to 00:30 to 09:30 in UYT.

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

Time Difference

India Standard Time is 8 hours and 30 minutes ahead of Uruguay Time.
5:30 pm17:30 in IST is 9:00 am09:00 in UYT

IST to UYT call time
Best time for a conference call or a meeting is between 5:30pm-6pm17:30-18:00 in IST which corresponds to 9am-9:30am09:00-09:30 in UYT

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
9:00 am09:00 Uruguay Time (UYT). Offset UTC -3:00 hours

5:30 pm17:30 IST / 9:00 am09:00 UYT

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
ISTUYT
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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

Map of the areas on India Standard Time (IST)
IST all year

Open the world time zone map© OpenStreetMap

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

Uruguay Summer Time

Offset: UYST is 2 hours behind Greenwich Mean Time (GMT).

UYST 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 west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Oscar - Military abbreviation for UYST
  • O - short form of 'Oscar'
Time zones with the GMT -2 offset:
  • PMDT - Pierre & Miquelon Daylight Time
  • WGT - West Greenland Time
  • BRST - Brasilia Summer Time
  • FNT - Fernando de Noronha Time
  • O - Oscar Time Zone
  • UYST - Uruguay Summer Time