Updating current time…
California, USAPDT
UTC−7
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Costa Mesa's clocks go back 1 hour on Sun, Nov 1 · PDT → PST
IST
UTC+5:30
12h 30m ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

5:00 am05:00 PDT (UTC-7), Oct 25, 2026 = 5:30 pm17:30 IST (UTC+5:30), Oct 25, 2026

Costa Mesa is 12 hours and 30 minutes behind IST.

How the time difference changes

For most of the year, Costa Mesa is 12 hours and 30 minutes behind IST. From Nov 1, 2026 to Mar 14, 2027, Costa Mesa is 13 hours and 30 minutes behind IST.

For most of the year, working hours of 9:00 am to 6:00 pm in Costa Mesa correspond to 9:30 pm to 6:30 am (next day) in IST. At other times of the year, working hours of 9:00 am to 6:00 pm in Costa Mesa correspond to 10:30 pm to 7:30 am (next day) in IST.For most of the year, working hours of 09:00 to 18:00 in Costa Mesa correspond to 21:30 to 06:30 (next day) in IST. At other times of the year, working hours of 09:00 to 18:00 in Costa Mesa correspond to 22:30 to 07:30 (next day) in IST.

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

Time Difference

PDT (Pacific Daylight Time) is 12 hours and 30 minutes behind India Standard Time.
5:00 am05:00 in Costa Mesa, CA, USA is 5:30 pm17:30 in IST

Costa Mesa to IST call time
Best time for a conference call or a meeting is between 7pm-8pm19:00-20:00 in Costa Mesa which corresponds to 7:30am-8:30am07:30-08:30 in IST (next day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

5:00 am05:00 PDT (Pacific Daylight Time) (Costa Mesa, CA, USA). Offset UTC -7:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours

5:00 am05:00 Costa Mesa, CA, USA / 5:30 pm17:30 IST

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Hourly time comparison
Costa Mesa, CA, USAIST
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Costa Mesa Time Zone and Facts

Time Zone

Abbreviation / Offset
PDT – Pacific Daylight Time, UTC-7 (now, daylight saving time)
PST – Pacific Standard Time, UTC-8 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, November 1, 2026 at 2:00 amSunday, November 1, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (PST). DST ends on the 1st Sunday of November each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 14, 2027 at 2:00 amSunday, March 14, 2027 at 02:00: clocks go forward 1 hour to 3:00 am03:00 (PDT). DST starts on the 2nd Sunday of March each year. Also called Spring Forward or Summer Time.

Costa Mesa Facts

Country
USA
State
California
Alternative Names
Costa Mesa, Costa Mesa (Orange County), Fairview, Goat Hill, Harper, Kosta Mesa, Kosta-Mesa, Thurin, ke si ta mei sa, kosta mesa, kosutamesa, kwsta msa kalyfrnya, kwsta mysa, Коста Меса, Коста-Меса, كوستا ميسا, کوستا مسا، کالیفرنیا, کوسٹا میسا, कोस्टा मेसा, コスタメサ, 科斯塔梅薩
Population
113,204
Currency
Dollar (USD)
Geographic Coordinates
33° 38' N Latitude / 117° 55' W Longitude
International Dialing Code
+1

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