The Pacific Time Zone refers lớn a time zone which observes standard time by subtracting eight hours from Greenwich Mean Time (UTC/GMT -8). Time in this zone is based on the mean solar time of the 120th meridian west of the Greenwich Observatory. During daylight saving time, its time offset is GMT -7.
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Pacific Time (PT)
In the United States and Canada, this time zone is generically called Pacific Time (PT). Specifically, it is Pacific Standard Time (PST) when observing standard time (Winter), and Pacific Daylight Time (PDT) when observing daylight saving time (Summer).Effective since 2007, the local time changes from PST khổng lồ PDT at 02:00 LST khổng lồ 03:00 LDT on the second Sunday in March, và returns at 02:00 LDT to 01:00 LST on the first Sunday in November, in the U.S.A. As well as in Canada.
Daylight Saving Time Information
The Beginning and end dates of the daylight saving time in the United States and in Canada. Daylight saving time starting and ending dates are slightly different in Mexico comparing to lớn Canada và the USA dates which are presented here. A few of the Mexocan border cities follow the USA dayligth saving times though.
North American Time Zones
| Year | Begins | Ends |
| 2020 | ||
| 2021 | ||
| 2022 | ||
| 2023 | ||
| 2024 | ||
| 2025 | ||
| 2026 | ||
| 2027 | ||
| 2028 | ||
| 2029 |
Daylight saving time start and and dates in Canada & in the USA.
North American Time Zones
The time zones in North America, in the west from Hawaii and Alaska to lớn the east cost of USA and Canada và all the way to lớn Nova Scotia và Newfoundland.
| Hours from UTC/GMT | Standard Time | Daylight Saving Time |
| -10 | Hawaii-Aleutian | |
| -9 | Alaska | Hawaii-Aleutian |
| -8 | Pacific | Alaska |
| -7 | Mountain | Pacific |
| -6 | Central | Mountain |
| -5 | Eastern | Central |
| -4 | Atlantic | Eastern |
| -3:30 | Newfoundland | |
| -3 | Atlantic | |
| -2:30 | Newfoundland |
GMT and UTC
Greenwich Mean Time (GMT) is originally referring lớn mean solar time at the Royal Observatory in Greenwich, London. GMT and Coordinated Universal Time (UTC) can be seen equivalent when fractions of a second are not important.
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Time Difference
Pacific Daylight Time is 7 hours behind Greenwich Mean Time3:00 am03:00 in PDT is 10:00 am10:00 in GMTPST to GMT điện thoại tư vấn timeBest time for a conference hotline or a meeting is between 8am-10am in PST which corresponds to 4pm-6pm in GMT
3:00 am03:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours 10:00 am10:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
3:00 am03:00 PDT / 10:00 am10:00 GMT
| 12am (midnight) | 7am |
| 1am | 8am |
| 2am | 9am |
| 3am | 10am |
| 4am | 11am |
| 5am | 12pm (noon) |
| 6am | 1pm |
| 7am | 2pm |
| 8am | 3pm |
| 9am | 4pm |
| 10am | 5pm |
| 11am | 6pm |
| 12pm (noon) | 7pm |
| 1pm | 8pm |
| 2pm | 9pm |
| 3pm | 10pm |
| 4pm | 11pm |
| 5pm | 12am (midnight) |
| 6pm | 1am |
| 7pm | 2am |
| 8pm | 3am |
| 9pm | 4am |
| 10pm | 5am |
| 11pm | 6am |
| 0:00 | 7:00 |
| 1:00 | 8:00 |
| 2:00 | 9:00 |
| 3:00 | 10:00 |
| 4:00 | 11:00 |
| 5:00 | 12:00 |
| 6:00 | 13:00 |
| 7:00 | 14:00 |
| 8:00 | 15:00 |
| 9:00 | 16:00 |
| 10:00 | 17:00 |
| 11:00 | 18:00 |
| 12:00 | 19:00 |
| 13:00 | 20:00 |
| 14:00 | 21:00 |
| 15:00 | 22:00 |
| 16:00 | 23:00 |
| 17:00 | 0:00 |
| 18:00 | 1:00 |
| 19:00 | 2:00 |
| 20:00 | 3:00 |
| 21:00 | 4:00 |
| 22:00 | 5:00 |
| 23:00 | 6:00 |
Offset: PST is 8 hours behind Greenwich Mean Time (GMT) và is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest thành phố in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Pacific Daylight Time (PDT).
W3C/ISO-8601: International standard covering representation and exchange of dates & time-related data -08 - basic short-0800 - basic-08:00 - extended
Email/RFC-2822: internet Message Format Date Standard, typically used for timestamps in e-mail headers
-0800 - sign character (-) followed by a four digit time providing hours (08) & minutes (00) of the offset. Indicates eight hour và zero minutes time differences to lớn the west of the zero meridian.
IANA/Olson: Reflects PST time zone boundaries defined by political bodies, primarily intended for use with computer programs & operating systems
America/Ensenada
America/Los_Angeles
America/Santa_Isabel
America/Tijuana
America/Vancouver
Canada/Pacific
Mexico/Baja
Norte
PST8PDTUS/Pacific
PST Abbreviation: Several time zones nói qua PST abbreviation và it could refer lớn these time zones Pacific Standard Time - UTC -8Pitcairn Standard Time - UTC -8Peru Standard Time - UTC -5
Time zones with the GMT -8 offset: AKDT - Alaska Daylight Time
PST - Pacific Standard Time
PT - Pacific Time
PST - Pitcairn Standard Time
U - Uniform Time Zone
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) & is used in Europe
Countries: It is used in following countries: Burkina Faso, Côte d"Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome và Principe, Togo
Principal Cities: The largest city in the GMT timezone is London from United Kingdom with population about 7.557 million people. Other major cities in the area are Abidjan, Dakar, Grand Dakar, Accra
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to lớn refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, và 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.
W3C/ISO-8601: International standard covering representation & exchange of dates and time-related data Z - is the zone designator for the zero UTC/GMT offset, also known as "Zulu" time+00 - basic short+0000 - basic+00:00 - extended
Email/RFC-2822: mạng internet Message Format Date Standard, typically used for timestamps in e-mail headers
+0000 - sign character (+) followed by a four digit time providing hours (00) & minutes (00) of the offset. Indicates zero hour và zero minutes time differences of the zero meridian.
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
Africa/Abidjan
Africa/Accra
Africa/Bamako
Africa/Banjul
Africa/Bissau
Africa/Conakry
Africa/Dakar
Africa/Freetown
Africa/Lome
Africa/Monrovia
Africa/Nouakchott
Africa/Ouagadougou
Africa/Sao_Tome
Africa/Timbuktu
America/Danmarkshavn
Atlantic/Reykjavik
Atlantic/St_Helena
Eire
Etc/GMTEtc/GMT+0Etc/GMT-0Etc/GMT0Etc/Greenwich
Europe/Belfast
Europe/Dublin
Europe/Guernsey
Europe/Isle_of_Man
Europe/Jersey
Europe/London
GBGB-Eire
GMTGMT+0GMT-0GMT0Greenwich
Iceland
GMT Abbreviation: Several time zones nói qua GMT abbreviation & it could refer to lớn these time zones Greenwich Mean Time - UTC +0GMT+03:00 - UTC +3GMT-03:00 - UTC -3GMT+07:00 - UTC +7GMT+01:00 - UTC +1GMT+12:00 - UTC +12
Time zones with the GMT +0 offset: EGST - Eastern Greenland Summer Time
GMT - Greenwich Mean Time
WET - Western European Time
AZOST - Azores Summer Time
UTC - Universal Time Coordinated
WT - Western Sahara Standard Time
Z - Zulu Time Zone
