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IST to NZST Converter

IST
India Standard Time
GMT +5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
NZST
New Zealand Standard Time
GMT +12
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

IST is 6 hours and 30 minutes behind NZST. IST uses GMT +5:30, and NZST uses GMT +12 for this comparison.

For example, 3:30 am IST is 10:00 am NZST. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9am-10:30am IST, which is 3:30pm-5pm NZST.

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

Time Difference

India Standard Time is 6 hours and 30 minutes behind New Zealand Standard Time
3:30 am03:30 in IST is 10:00 am10:00 in NZST

IST to NZST call time
Best time for a conference call or a meeting is between 9am-10:30am in IST which corresponds to 3:30pm-5pm in NZST

3:30 am03:30 India Standard Time (IST). Offset UTC +5:30 hours
10:00 am10:00 New Zealand Standard Time (NZST). Offset UTC +12:00 hours

3:30 am03:30 IST / 10:00 am10:00 NZST

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

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, Kolkata, Chennai.

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.

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

New Zealand Standard Time

Offset: NZST is 12 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: Antarctica, New Zealand

Principal Cities: The largest city in the NZST time zone is Auckland in New Zealand, with about 1.535 million people. Other major cities in this time zone include Wellington, Christchurch, Hamilton, Tauranga.

NZST Time Zone Geo Map
NZST 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 New Zealand Daylight Time (NZDT).

Daylight saving time clock moves back for one hour from 3am to 2amStart: New Zealand Standard Time (NZST) started on Sunday, April 5, 2026 at 3:00 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:00 am. Standard time starts annually on the first Sunday of April.

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: New Zealand Standard Time (NZST) ends on Sunday, September 27, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, September 27, 2026, 3:00 am local daylight time instead. Standard time ends annually on the last Sunday of September.

NZST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +12 - basic short
  • +1200 - basic
  • +12:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1200 - sign character (+) followed by a four digit time providing hours (12) and minutes (00) of the offset. Indicates an offset of twelve hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Mike - Military abbreviation for NZST
  • M - short form of 'Mike'
IANA/Olson: Reflects NZST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/McMurdo
  • Antarctica/South_Pole
  • NZ
  • Pacific/Auckland
Time zones with the GMT +12 offset:
  • ANAST - Anadyr Summer Time
  • ANAT - Anadyr Time
  • FJT - Fiji Time
  • GILT - Gilbert Island Time
  • M - Mike Time Zone
  • MAGST - Magadan Summer Time
  • MHT - Marshall Islands Time
  • NRT - Nauru Time
  • NZST - New Zealand Standard Time
  • PETST - Kamchatka Summer Time
  • TVT - Tuvalu Time
  • WFT - Wallis and Futuna Time
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT