NZST to CHAST Converter
Quick answers
Selected conversion
The selected date and time will appear here when the converter loads.
NZST and CHAST examples
These examples always use NZST (UTC+12) and CHAST (UTC+12:45). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
NZST is 45 minutes behind CHAST.
How the time difference changes
Depending on seasonal clock changes, NZDT is 45 minutes behind CHADT or NZST is 45 minutes behind CHAST.
Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in NZDT correspond to 9:45 am to 5:45 pm in CHADT or working hours of 9:00 am to 5:00 pm in NZST correspond to 9:45 am to 5:45 pm in CHAST.
Compare NZST time with CHAST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
New Zealand Standard Time is 0 hours and 45 minutes behind Chatham Island Standard Time
11:00 pm23:00 in NZST is 11:45 pm23:45 in CHAST
NZST to CHAST call time
Best time for a conference call or a meeting is between 9am-4:15pm in NZST which corresponds to 9:45am-5pm in CHAST
11:00 pm23:00 New Zealand Standard Time (NZST). Offset UTC +12:00 hours
11:45 pm23:45 Chatham Island Standard Time (CHAST). Offset UTC +12:45 hours
11:00 pm23:00 NZST / 11:45 pm23:45 CHAST
| NZST | CHAST |
|---|---|
| 12am (midnight) | 12:45 am |
| 1am | 1:45 am |
| 2am | 2:45 am |
| 3am | 3:45 am |
| 4am | 4:45 am |
| 5am | 5:45 am |
| 6am | 6:45 am |
| 7am | 7:45 am |
| 8am | 8:45 am |
| 9am | 9:45 am |
| 10am | 10:45 am |
| 11am | 11:45 am |
| 12pm (noon) | 12:45 pm |
| 1pm | 1:45 pm |
| 2pm | 2:45 pm |
| 3pm | 3:45 pm |
| 4pm | 4:45 pm |
| 5pm | 5:45 pm |
| 6pm | 6:45 pm |
| 7pm | 7:45 pm |
| 8pm | 8:45 pm |
| 9pm | 9:45 pm |
| 10pm | 10:45 pm |
| 11pm | 11:45 pm |
| 00:00 | 00:45 |
| 01:00 | 01:45 |
| 02:00 | 02:45 |
| 03:00 | 03:45 |
| 04:00 | 04:45 |
| 05:00 | 05:45 |
| 06:00 | 06:45 |
| 07:00 | 07:45 |
| 08:00 | 08:45 |
| 09:00 | 09:45 |
| 10:00 | 10:45 |
| 11:00 | 11:45 |
| 12:00 | 12:45 |
| 13:00 | 13:45 |
| 14:00 | 14:45 |
| 15:00 | 15:45 |
| 16:00 | 16:45 |
| 17:00 | 17:45 |
| 18:00 | 18:45 |
| 19:00 | 19:45 |
| 20:00 | 20:45 |
| 21:00 | 21:45 |
| 22:00 | 22:45 |
| 23:00 | 23:45 |
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.
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).
Start: 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.
End: 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
- +12 - basic short
- +1200 - basic
- +12:00 - extended
- +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.
- Mike - Military abbreviation for NZST
- M - short form of 'Mike'
- Antarctica/McMurdo
- Antarctica/South_Pole
- NZ
- Pacific/Auckland
- 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
Chatham Island Standard Time
Offset: CHAST is 12 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific
Countries using this time zone: New Zealand
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Chatham Island Daylight Time (CHADT).
Start: Chatham Island Standard Time (CHAST) started on Sunday, April 5, 2026 at 3:45 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:45 am. Standard time starts annually on the first Sunday of April.
End: Chatham Island Standard Time (CHAST) ends on Sunday, September 27, 2026 at 2:45 am local time and clocks are set one hour forward to Sunday, September 27, 2026, 3:45 am local daylight time instead. Standard time ends annually on the last Sunday of September.
CHAST representations, usage and related time zones
- +1245 - basic
- +12:45 - extended
- +1245 - sign character (+) followed by a four digit time providing hours (12) and minutes (45) of the offset. Indicates an offset of twelve hours and forty-five minutes to the east of the zero meridian.