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CHADT to NZST Converter

Updating current time…
CHADT
Chatham Island Daylight Time
GMT +13:45
12am
3am
6am
9am
12pm
3pm
6pm
9pm
NZDT/NZST
New Zealand Daylight Time
GMT +13
12am
3am
6am
9am
12pm
3pm
6pm
9pm
NZST is not used on September 28, 2026

This converter uses NZDT for New Zealand.

Keep NZST (GMT +12)

Quick answers

Selected conversion

The selected date and time will appear here when the converter loads.

CHADT and NZST examples

These examples always use CHADT (UTC+13:45) and NZST (UTC+12). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CHADT is 1 hour and 45 minutes ahead of NZST.

How the time difference changes

Depending on seasonal clock changes, CHADT is 45 minutes ahead of NZDT or CHAST is 45 minutes ahead of NZST.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in CHADT correspond to 8:15 am to 4:15 pm in NZDT or working hours of 9:00 am to 5:00 pm in CHAST correspond to 8:15 am to 4:15 pm in NZST.

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

Time Difference

Chatham Island Daylight Time is 0 hours and 45 minutes ahead of New Zealand Daylight Time
4:00 pm16:00 in CHADT is 3:15 pm15:15 in NZDT

CHADT to NZDT call time
Best time for a conference call or a meeting is between 9:45am-5pm in CHADT which corresponds to 9am-4:15pm in NZDT

4:00 pm16:00 Chatham Island Daylight Time (CHADT). Offset UTC +13:45 hours
3:15 pm15:15 New Zealand Daylight Time (NZDT). Offset UTC +13:00 hours

4:00 pm16:00 CHADT / 3:15 pm15:15 NZDT

CHADTNZDT
12am (midnight)11:15 pm
1am12:15 am
2am1:15 am
3am2:15 am
4am3:15 am
5am4:15 am
6am5:15 am
7am6:15 am
8am7:15 am
9am8:15 am
10am9:15 am
11am10:15 am
12pm (noon)11:15 am
1pm12:15 pm
2pm1:15 pm
3pm2:15 pm
4pm3:15 pm
5pm4:15 pm
6pm5:15 pm
7pm6:15 pm
8pm7:15 pm
9pm8:15 pm
10pm9:15 pm
11pm10:15 pm
00:0023:15
01:0000:15
02:0001:15
03:0002:15
04:0003:15
05:0004:15
06:0005:15
07:0006:15
08:0007:15
09:0008:15
10:0009:15
11:0010:15
12:0011:15
13:0012:15
14:0013:15
15:0014:15
16:0015:15
17:0016:15
18:0017:15
19:0018:15
20:0019:15
21:0020:15
22:0021:15
23:0022:15

Chatham Island Daylight Time

Offset: CHADT is 13 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: New Zealand

CHADT Time Zone Geo Map
CHADT timezone map

Daylight Saving: Chatham Island Daylight Time (CHADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Chatham Island Standard Time (CHAST).

Start: Chatham Island Daylight Time (CHADT) started on Sunday, September 27, 2026 at 2:45 am local time and clocks were set one hour forward to Sunday, September 27, 2026, 3:45 am. Daylight saving starts annually on the last Sunday of September

End: Chatham Island Daylight Time (CHADT) ends on Sunday, April 4, 2027 at 3:45 am local time and clocks are set one hour back to Sunday, April 4, 2027, 2:45 am local standard time instead. Daylight saving ends annually on the first Sunday of April

CHADT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1345 - basic
  • +13:45 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1345 - sign character (+) followed by a four digit time providing hours (13) and minutes (45) of the offset. Indicates an offset of thirteen hours and forty-five minutes to the east of the zero meridian.

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 1.547 million people. Other major cities in this time zone include Christchurch, Wellington, 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 forward for one hour from 2am to 3amEnd: New Zealand Standard Time (NZST) ended on Sunday, September 27, 2026 at 2:00 am local time and clocks were 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.

Daylight saving time clock moves back for one hour from 3am to 2amStart: New Zealand Standard Time (NZST) starts on Sunday, April 4, 2027 at 3:00 am local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am. Standard time starts annually on the first Sunday of April.

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