NZDT to EST to CST to PDT to Sydney to AEDT to AEST to London Time Converter

Time Difference

New Zealand Daylight Time is 18 hours ahead of Eastern Standard Time. New Zealand Daylight Time is 19 hours ahead of Central Standard Time. New Zealand Daylight Time is 21 hours ahead of Pacific Standard Time. New Zealand Daylight Time is 2 hours ahead of AEDT (Australian Eastern Daylight Time). New Zealand Daylight Time is 2 hours ahead of Australian Eastern Daylight Time. New Zealand Daylight Time is 3 hours ahead of Australian Eastern Standard Time. New Zealand Daylight Time is 13 hours ahead of GMT (Greenwich Mean Time).
1:00 am01:00 in NZDT is 7:00 am07:00 in EST (previous day) and is 6:00 am06:00 in CST (previous day) and is 4:00 am04:00 in PST (previous day) and is 11:00 pm23:00 in Sydney, Australia (previous day) and is 11:00 pm23:00 in AEDT (previous day) and is 10:00 pm22:00 in AEST (previous day) and is 12:00 pm12:00 in London, United Kingdom (previous day)

NZDT to EST call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in NZDT which corresponds to 3pm-6pm15:00-18:00 in EST (previous day).
NZDT to CST call time
Best time for a conference call or a meeting is between 9am-1pm09:00-13:00 in NZDT which corresponds to 2pm-6pm14:00-18:00 in CST (previous day).
NZDT to PST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in NZDT which corresponds to 12pm-6pm12:00-18:00 in PST (previous day).
NZDT to Sydney call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in NZDT which corresponds to 9am-4pm09:00-16:00 in Sydney.
NZDT to AEDT call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in NZDT which corresponds to 9am-4pm09:00-16:00 in AEDT.
NZDT to AEST call time
Best time for a conference call or a meeting is between 12pm-6pm12:00-18:00 in NZDT which corresponds to 9am-3pm09:00-15:00 in AEST.
NZDT to London call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in NZDT which corresponds to 6:30pm-7:30pm18:30-19:30 in London (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

1:00 am01:00 New Zealand Daylight Time (NZDT). Offset UTC +13:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
11:00 pm23:00 AEDT (Australian Eastern Daylight Time) (Sydney, Australia). Offset UTC +11:00 hours
11:00 pm23:00 Australian Eastern Daylight Time (AEDT). Offset UTC +11:00 hours
10:00 pm22:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
12:00 pm12:00 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours

1:00 am01:00 NZDT / 7:00 am07:00 EST (previous day) / 6:00 am06:00 CST (previous day) / 4:00 am04:00 PST (previous day) / 11:00 pm23:00 Sydney, Australia (previous day) / 11:00 pm23:00 AEDT (previous day) / 10:00 pm22:00 AEST (previous day) / 12:00 pm12:00 London, United Kingdom (previous day)

New Zealand Daylight Time

Offset: NZDT is 13 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, New Zealand

Principal Cities: The largest city in the NZDT 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.

Daylight Saving: New Zealand Daylight Time (NZDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe New Zealand Standard Time (NZST).

Start: New Zealand Daylight Time (NZDT) started on Sunday, September 27, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, September 27, 2026, 3:00 am03:00. Daylight saving starts annually on the last Sunday of September.

End: New Zealand Daylight Time (NZDT) ends on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the first Sunday of April.

See New Zealand daylight saving time and upcoming clock changes worldwide.

NZDT representations, usage and related time zones

Eastern Standard Time

Offset: EST is 5 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, United States

Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.

French: HNE - Heure Normale de l'Est

Spanish: ET - Tiempo del Este, ET - Zona Sureste

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).

Start: Eastern Standard Time (EST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

End: Eastern Standard Time (EST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

EST representations, usage and related time zones

Central Standard Time

Offset: CST is 6 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States

Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central Daylight Time (CDT).

Start: Central Standard Time (CST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

End: Central Standard Time (CST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

CST representations, usage and related time zones

Pacific Daylight Time

Offset: PDT is 7 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

French: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Pacific Standard Time (PST).

End: Pacific Daylight Time (PDT) ended on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

Start: Pacific Daylight Time (PDT) starts on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

PDT representations, usage and related time zones

Australian Eastern Daylight Time

Offset: AEDT is 11 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the AEDT time zone is Sydney in Australia, with about 5.639 million people. Other major cities in this time zone include Melbourne, Newcastle, Canberra, Central Coast.

Daylight Saving: Australian Eastern Daylight Time (AEDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Australian Eastern Standard Time (AEST).

Start: Australian Eastern Daylight Time (AEDT) started on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00. Daylight saving starts annually on the first Sunday of October.

End: Australian Eastern Daylight Time (AEDT) ends on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the first Sunday of April.

See Australia daylight saving time and upcoming clock changes worldwide.

Australian Eastern Daylight Time (AEDT) is observer in New South Wales (except Broken Hill and Lord Howe Island), Victoria, Tasmania, Australian Capital Territory, Sydney, Melbourne, Hobart, Canberra AEDT is equal to Coordinated Universal Time plus 11 hours (UTC +11). During a summer time period, these locations move from AEST to Australian Eastern Daylight Time (AEDT), and clocks are advanced to UTC +11.

Daylight saving or summer time is commonly expressed as AEDT (Australian Eastern Daylight Time). In periods of daylight saving an hour is added to the Local Standard Time.

The regulation of time is a State Government responsibility. Changes to the period of daylight saving may be made by regulation. Legislation to harmonise daylight saving in NSW with the south-eastern states and the ACT was passed by the NSW Parliament on 23 October 2007.

History of daylight saving in New South Wales
Daylight saving operated nationally for single summer during World War I from 1 January 1917 to 25 March 1917 and during World War II for three summers in a row, starting on 1 January 1942. Daylight saving was re-introduced for third time in New South Wales on 31 October 1971 after New South Wales Parliament passed the Standard Time Act 1971. A referendum held on 1 May 1976 proposed that daylight saving should be on a permanent basis. The ballot paper stated: "At present there is a period commonly called 'daylight saving' by which time is advanced by one hour for the period commencing on the last Sunday in October in each year and ending on the first Sunday in March in the following year. Electors were then asked to answer YES or NO to the question: Are you in favour of daylight saving? 1,882,770 electors were in favour, 868,900 were against and 35,507 votes were informal.\" The period of daylight saving is prescribed by the Daylight Saving Regulations 2008, made under the Daylight Saving Act 2007. Since April 2008, daylight saving has been synchronised across Tasmania, New South Wales, Victoria, the ACT and South Australia, although South Australia remains half an hour behind throughout the year due to the observance of Australian Central Standard Time.

Which is correct Daylight Savings or Daylight Saving (with or without the 's' at the end)? The correct spelling in Australia is without the 's'.

AEDT representations, usage and related time zones

Australian Eastern Standard Time

Offset: AEST is 10 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the AEST time zone is Sydney in Australia, with about 5.639 million people. Other major cities in this time zone include Melbourne, Brisbane, Gold Coast, Newcastle.

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Australian Eastern Daylight Time (AEDT).

End: Australian Eastern Standard Time (AEST) ended on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the first Sunday of October.

Start: Australian Eastern Standard Time (AEST) starts on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00. Standard time starts annually on the first Sunday of April.

See Australia daylight saving time and upcoming clock changes worldwide.

Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra

Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.

AEST representations, usage and related time zones