PDT to NZST to EDT to GMT to CET to HKT to AEDT to UTC

Time Difference

Pacific Daylight Time is 19 hours behind New Zealand Standard Time and 3 hours behind Eastern Daylight Time and 7 hours behind Greenwich Mean Time and 9 hours behind Central European Summer Time and 15 hours behind Hong Kong Time and 17 hours behind Australian Eastern Standard Time and 7 hours behind Universal Time Coordinated
9:00 pm21:00 in PDT is 4:00 pm16:00 in NZST and is 12:00 am00:00 in EDT and is 4:00 am04:00 in GMT and is 6:00 am06:00 in CEST and is 12:00 pm12:00 in HKT and is 2:00 pm14:00 in AEST and is 4:00 am04:00 in UTC

PDT to NZST call time
Best time for a conference call or a meeting is between 2pm-5pm in PDT which corresponds to 9am-12pm in NZST (next day)
PDT to EDT call time
Best time for a conference call or a meeting is between 9am-2pm in PDT which corresponds to 12pm-5pm in EDT
PDT to GMT call time
Best time for a conference call or a meeting is between 9am-10am in PDT which corresponds to 4pm-5pm in GMT
PDT to CEST call time
Best time for a conference call or a meeting is between 8am-9am in PDT which corresponds to 5pm-6pm in CEST
PDT to HKT call time
Best time for a conference call or a meeting is between 5pm-6pm in PDT which corresponds to 8am-9am in HKT (next day)
PDT to AEST call time
Best time for a conference call or a meeting is between 4pm-5pm in PDT which corresponds to 9am-10am in AEST (next day)
PDT to UTC call time
Best time for a conference call or a meeting is between 9am-10am in PDT which corresponds to 4pm-5pm in UTC

9:00 pm21:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
4:00 pm16:00 New Zealand Standard Time (NZST). Offset UTC +12:00 hours
12:00 am00:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
4:00 am04:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
6:00 am06:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
12:00 pm12:00 Hong Kong Time (HKT). Offset UTC +8:00 hours
2:00 pm14:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
4:00 am04:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours

9:00 pm21:00 PDT / 4:00 pm16:00 NZST / 12:00 am00:00 EDT / 4:00 am04:00 GMT / 6:00 am06:00 CEST / 12:00 pm12:00 HKT / 2:00 pm14:00 AEST / 4:00 am04:00 UTC

Pacific Daylight Time

Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.793 million people. Other major cities in this time zone include Vancouver, Tijuana, San Diego, 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. During winter, some places set clocks back one hour and observe Pacific Standard Time (PST).

Start: Pacific Daylight Time (PDT) started on Sunday, March 8, 2026 at 2:00 am local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March

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

PDT representations, usage and related time zones

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

Eastern Daylight Time

Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Bahamas, Canada, Haiti, Turks & Caicos Is, United States

Principal Cities: The largest city in the EDT time zone is New York City in the United States, with about 8.175 million people. Other major cities in this time zone include Toronto, Montreal, Brooklyn, Borough of Queens.

French: HAE - Heure Avancée de l'Est

Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

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

Start: Eastern Daylight Time (EDT) started on Sunday, March 8, 2026 at 2:00 am local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March

End: Eastern Daylight Time (EDT) ends on Sunday, November 1, 2026 at 2:00 am local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November

EDT representations, usage and related time zones

Greenwich Mean Time

Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe

Countries using this time zone: Burkina Faso, Côte d'Ivoire, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Iceland, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo

Principal Cities: The largest city in the GMT time zone is Abidjan in Ivory Coast, with about 3.677 million people. Other major cities in this time zone include Dakar, Grand Dakar, Accra, Camayenne.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

GMT representations, usage and related time zones

Central European Time

Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe

Countries using this time zone: Algeria, Tunisia

Principal Cities: The largest city in the CET time zone is Algiers in Algeria, with about 1.978 million people. Other major cities in this time zone include Boumerdas, Tunis, Oran, Tebessa.

German: MEZ - Mitteleuropäische Zeit

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

End: Central European Time (CET) ended on Sunday, March 29, 2026 at 2:00 am local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am local daylight time instead. Standard time ends annually on the last Sunday of March.

Start: Central European Time (CET) starts on Sunday, October 25, 2026 at 3:00 am local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am. Standard time starts annually on the last Sunday of October.

CET representations, usage and related time zones

Hong Kong Time

Offset: HKT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Hong Kong

Principal Cities: The largest city in the HKT time zone is Hong Kong in Hong Kong, with about 7.013 million people. Other major cities in this time zone include Kowloon, Tsuen Wan, Yuen Long Kau Hui, Sha Tin.

Daylight Saving: Clocks in Hong Kong Time (HKT) do not change for daylight saving time, so HKT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

HKT representations, usage and related time zones

Australian Eastern Daylight Time

Offset: AEDT is 11 hours ahead Greenwich Mean Time (GMT) and is used in Australia

Countries using this time zone: Australia

Principal Cities: The largest city in the AEDT time zone is Sydney in Australia, with about 4.627 million people. Other major cities in this time zone include Melbourne, Canberra, Newcastle, Wollongong.

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

End: Australian Eastern Daylight Time (AEDT) ended 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 local standard time instead. Daylight saving ends annually on the first Sunday of April

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

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

Universal Time Coordinated

UTC representations, usage and related time zones