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Z
Zulu Time Zone
GMT +0
CDT/CST
Central Daylight Time
GMT -5
CST automatically adjusted to CDT time zone, that is in use
MDT/MST
Mountain Daylight Time
GMT -6
MST automatically adjusted to MDT time zone, that is in use
EDT/EST
Eastern Daylight Time
GMT -4
EST automatically adjusted to EDT time zone, that is in use
Time Difference
Zulu Time Zone is 5 hours ahead of Central Daylight Time and 6 hours ahead of Mountain Daylight Time and 4 hours ahead of Eastern Daylight Time
3:30 pm15:30 in Z is 10:30 am10:30 in CDT and is 9:30 am09:30 in MDT and is 11:30 am11:30 in EDT
Z to CST call time
Best time for a conference call or a meeting is between 2pm-6pm in Z which corresponds to 8am-12pm in CST
Z to MST call time
Best time for a conference call or a meeting is between 3pm-6pm in Z which corresponds to 8am-11am in MST
Z to EST call time
Best time for a conference call or a meeting is between 1pm-6pm in Z which corresponds to 8am-1pm in EST
3:30 pm15:30 Zulu Time Zone (Z). Offset UTC 0:00 hours
10:30 am10:30 Central Daylight Time (CDT). Offset UTC -5:00 hours
9:30 am09:30 Mountain Daylight Time (MDT). Offset UTC -6:00 hours
11:30 am11:30 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
3:30 pm15:30 Z / 10:30 am10:30 CDT / 9:30 am09:30 MDT / 11:30 am11:30 EDT
| Z | CDT | MDT | EDT |
|---|---|---|---|
| 12am (midnight) | 7pm | 6pm | 8pm |
| 1am | 8pm | 7pm | 9pm |
| 2am | 9pm | 8pm | 10pm |
| 3am | 10pm | 9pm | 11pm |
| 4am | 11pm | 10pm | 12am (midnight) |
| 5am | 12am (midnight) | 11pm | 1am |
| 6am | 1am | 12am (midnight) | 2am |
| 7am | 2am | 1am | 3am |
| 8am | 3am | 2am | 4am |
| 9am | 4am | 3am | 5am |
| 10am | 5am | 4am | 6am |
| 11am | 6am | 5am | 7am |
| 12pm (noon) | 7am | 6am | 8am |
| 1pm | 8am | 7am | 9am |
| 2pm | 9am | 8am | 10am |
| 3pm | 10am | 9am | 11am |
| 4pm | 11am | 10am | 12pm (noon) |
| 5pm | 12pm (noon) | 11am | 1pm |
| 6pm | 1pm | 12pm (noon) | 2pm |
| 7pm | 2pm | 1pm | 3pm |
| 8pm | 3pm | 2pm | 4pm |
| 9pm | 4pm | 3pm | 5pm |
| 10pm | 5pm | 4pm | 6pm |
| 11pm | 6pm | 5pm | 7pm |
| 0:00 | 19:00 | 18:00 | 20:00 |
| 1:00 | 20:00 | 19:00 | 21:00 |
| 2:00 | 21:00 | 20:00 | 22:00 |
| 3:00 | 22:00 | 21:00 | 23:00 |
| 4:00 | 23:00 | 22:00 | 0:00 |
| 5:00 | 0:00 | 23:00 | 1:00 |
| 6:00 | 1:00 | 0:00 | 2:00 |
| 7:00 | 2:00 | 1:00 | 3:00 |
| 8:00 | 3:00 | 2:00 | 4:00 |
| 9:00 | 4:00 | 3:00 | 5:00 |
| 10:00 | 5:00 | 4:00 | 6:00 |
| 11:00 | 6:00 | 5:00 | 7:00 |
| 12:00 | 7:00 | 6:00 | 8:00 |
| 13:00 | 8:00 | 7:00 | 9:00 |
| 14:00 | 9:00 | 8:00 | 10:00 |
| 15:00 | 10:00 | 9:00 | 11:00 |
| 16:00 | 11:00 | 10:00 | 12:00 |
| 17:00 | 12:00 | 11:00 | 13:00 |
| 18:00 | 13:00 | 12:00 | 14:00 |
| 19:00 | 14:00 | 13:00 | 15:00 |
| 20:00 | 15:00 | 14:00 | 16:00 |
| 21:00 | 16:00 | 15:00 | 17:00 |
| 22:00 | 17:00 | 16:00 | 18:00 |
| 23:00 | 18:00 | 17:00 | 19:00 |
Zulu Time Zone
Offset: Z is 0 hours ahead Greenwich Mean Time (GMT) and is used in Military
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.
Z representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and 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: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Zulu - Military abbreviation for Z
- Z - short form of 'Zulu'
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
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States
Principal Cities: The largest city in the CST timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Houston, Iztapalapa, Ecatepec
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
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 Central Daylight Time (CDT).
End: Central Standard Time (CST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Central Standard Time (CST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
CST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- -06 - basic short
- -0600 - basic
- -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates six hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Costa_Rica
- America/El_Salvador
- America/Guatemala
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Managua
- America/Matamoros
- America/Menominee
- America/Merida
- America/Mexico_City
- America/Monterrey
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Rainy_River
- America/Rankin_Inlet
- America/Regina
- America/Resolute
- America/Swift_Current
- America/Tegucigalpa
- America/Winnipeg
- CST6CDT
- Canada/Central
- Canada/Saskatchewan
- Mexico/General
- US/Central
- US/Indiana-Starke
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- Colombia Standard Time - UTC -5
Time zones with the GMT -6 offset:
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Mountain Standard Time
Offset: MST is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest city in the MST timezone is Ciudad Juarez from Mexico with population about 1.512 million people. Other major cities in the area are Phoenix, Calgary, Chihuahua, Edmonton
French: HNR - Heure Normale des Rocheuses
Spanish: MT - Zona Pacífico
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 Mountain Daylight Time (MDT).
End: Mountain Standard Time (MST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Mountain Standard Time (MST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
MST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- -07 - basic short
- -0700 - basic
- -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates seven hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Tango - Military abbreviation for MST
- T - short form of 'Tango'
IANA/Olson: Reflects MST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- America/Boise
- America/Cambridge_Bay
- America/Chihuahua
- America/Creston
- America/Dawson
- America/Dawson_Creek
- America/Denver
- America/Edmonton
- America/Fort_Nelson
- America/Hermosillo
- America/Inuvik
- America/Mazatlan
- America/Ojinaga
- America/Phoenix
- America/Shiprock
- America/Whitehorse
- America/Yellowknife
- Canada/Mountain
- Canada/Yukon
- MST
- MST7MDT
- Mexico/BajaSur
- Navajo
- US/Arizona
- US/Mountain
MST Abbreviation: Several time zones share MST abbreviation and it could refer to these time zones
- Mountain Standard Time - UTC -7
- Mauritius Standard Time - UTC +4
- Moscow Standard Time - UTC +3
- Magadan Summer Time - UTC +12
Time zones with the GMT -7 offset:
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States
Principal Cities: The largest city in the EST timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are Toronto, Montreal, Brooklyn, Borough of Queens
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
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 Eastern Daylight Time (EDT).
End: Eastern Standard Time (EST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Eastern Standard Time (EST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
EST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- -05 - basic short
- -0500 - basic
- -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates five hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
Time zones with the GMT -5 offset:
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
EST to IST GMT to EST PST to EST EST to GMT PST to GMT
