EDT to CDT to MDT to PDT to GMT
Time Difference
Eastern Standard Time is 1 hour ahead of Central Standard Time and 2 hours ahead of Mountain Standard Time and 3 hours ahead of Pacific Standard Time and 5 hours behind of Greenwich Mean Time
11:30 pm23:30 in EST is 10:30 pm22:30 in CST and is 9:30 pm21:30 in MST and is 8:30 pm20:30 in PST and is 4:30 am04:30 in GMT
EDT to CDT call time
Best time for a conference call or a meeting is between 9am-6pm in EDT which corresponds to 8am-5pm in CDT
EDT to MDT call time
Best time for a conference call or a meeting is between 10am-6pm in EDT which corresponds to 8am-4pm in MDT
EDT to PDT call time
Best time for a conference call or a meeting is between 11am-6pm in EDT which corresponds to 8am-3pm in PDT
EDT to GMT call time
Best time for a conference call or a meeting is between 8am-2pm in EDT which corresponds to 12pm-6pm in GMT
11:30 pm23:30 Eastern Standard Time (EST). Offset UTC -5:00 hours
10:30 pm22:30 Central Standard Time (CST). Offset UTC -6:00 hours
9:30 pm21:30 Mountain Standard Time (MST). Offset UTC -7:00 hours
8:30 pm20:30 Pacific Standard Time (PST). Offset UTC -8:00 hours
4:30 am04:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
11:30 pm23:30 EST / 10:30 pm22:30 CST / 9:30 pm21:30 MST / 8:30 pm20:30 PST / 4:30 am04:30 GMT
EST | CST | MST | PST | GMT |
---|---|---|---|---|
12am (midnight) | 11pm | 10pm | 9pm | 5am |
1am | 12am (midnight) | 11pm | 10pm | 6am |
2am | 1am | 12am (midnight) | 11pm | 7am |
3am | 2am | 1am | 12am (midnight) | 8am |
4am | 3am | 2am | 1am | 9am |
5am | 4am | 3am | 2am | 10am |
6am | 5am | 4am | 3am | 11am |
7am | 6am | 5am | 4am | 12pm (noon) |
8am | 7am | 6am | 5am | 1pm |
9am | 8am | 7am | 6am | 2pm |
10am | 9am | 8am | 7am | 3pm |
11am | 10am | 9am | 8am | 4pm |
12pm (noon) | 11am | 10am | 9am | 5pm |
1pm | 12pm (noon) | 11am | 10am | 6pm |
2pm | 1pm | 12pm (noon) | 11am | 7pm |
3pm | 2pm | 1pm | 12pm (noon) | 8pm |
4pm | 3pm | 2pm | 1pm | 9pm |
5pm | 4pm | 3pm | 2pm | 10pm |
6pm | 5pm | 4pm | 3pm | 11pm |
7pm | 6pm | 5pm | 4pm | 12am (midnight) |
8pm | 7pm | 6pm | 5pm | 1am |
9pm | 8pm | 7pm | 6pm | 2am |
10pm | 9pm | 8pm | 7pm | 3am |
11pm | 10pm | 9pm | 8pm | 4am |
0:00 | 23:00 | 22:00 | 21:00 | 5:00 |
1:00 | 0:00 | 23:00 | 22:00 | 6:00 |
2:00 | 1:00 | 0:00 | 23:00 | 7:00 |
3:00 | 2:00 | 1:00 | 0:00 | 8:00 |
4:00 | 3:00 | 2:00 | 1:00 | 9:00 |
5:00 | 4:00 | 3:00 | 2:00 | 10:00 |
6:00 | 5:00 | 4:00 | 3:00 | 11:00 |
7:00 | 6:00 | 5:00 | 4:00 | 12:00 |
8:00 | 7:00 | 6:00 | 5:00 | 13:00 |
9:00 | 8:00 | 7:00 | 6:00 | 14:00 |
10:00 | 9:00 | 8:00 | 7:00 | 15:00 |
11:00 | 10:00 | 9:00 | 8:00 | 16:00 |
12:00 | 11:00 | 10:00 | 9:00 | 17:00 |
13:00 | 12:00 | 11:00 | 10:00 | 18:00 |
14:00 | 13:00 | 12:00 | 11:00 | 19:00 |
15:00 | 14:00 | 13:00 | 12:00 | 20:00 |
16:00 | 15:00 | 14:00 | 13:00 | 21:00 |
17:00 | 16:00 | 15:00 | 14:00 | 22:00 |
18:00 | 17:00 | 16:00 | 15:00 | 23:00 |
19:00 | 18:00 | 17:00 | 16:00 | 0:00 |
20:00 | 19:00 | 18:00 | 17:00 | 1:00 |
21:00 | 20:00 | 19:00 | 18:00 | 2:00 |
22:00 | 21:00 | 20:00 | 19:00 | 3:00 |
23:00 | 22:00 | 21:00 | 20:00 | 4:00 |
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Turks & Caicos Is, United States
Principal Cities: The largest city in the EDT 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
Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer timezone, however during winter some places adjust time for one hour back and observe Eastern Standard Time (EST).
End: EDT ended and clocks were set one hour back on Sunday, 01 November 2020, at 2:00 (2:00 am) local time.
Start: EDT starts and clocks are set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.
French: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four hour and zero minutes time differences to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- 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/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST5EDT
- US/East-Indiana
- US/Eastern
- US/Michigan
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- FKT - Falkland Island Time
- GYT - Guyana Time
- PYT - Paraguay Time
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time
- -04 -
Central Daylight Time
Offset: CDT is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Cuba, Mexico, United States
Principal Cities: The largest city in the CDT timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Havana, Houston, Iztapalapa
Daylight Saving: Central Daylight Time (CDT) is a daylight saving/summer timezone, however during winter some places adjust time for one hour back and observe Central Standard Time (CST).
End: CDT ended and clocks were set one hour back on Sunday, 01 November 2020, at 2:00 (2:00 am) local time.
Start: CDT starts and clocks are set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.
French: HAC - Heure Avancée du Centre
Spanish: CT - Zona Centro

CDT representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -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.
- Romeo - Military abbreviation for CDT
- R - short form of 'Romeo'
- America/Bahia_Banderas
- America/Chicago
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- 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/Resolute
- America/Winnipeg
- CST6CDT
- Canada/Central
- Mexico/General
- US/Central
- US/Indiana-Starke
- Central Daylight Time - UTC -5
- Cuba Daylight Time - UTC -4
- 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
- -05 -
Mountain Daylight Time
Offset: MDT is 6 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 MDT timezone is Ciudad Juarez from Mexico with population about 1.512 million people. Other major cities in the area are Calgary, Chihuahua, Edmonton, El Paso
Daylight Saving: Mountain Daylight Time (MDT) is a daylight saving/summer timezone, however during winter some places adjust time for one hour back and observe Mountain Standard Time (MST).
End: MDT ended and clocks were set one hour back on Sunday, 01 November 2020, at 2:00 (2:00 am) local time.
Start: MDT starts and clocks are set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.
French: HAR - Heure Avancée des Rocheuses
Spanish: MT - Zona Pacífico

MDT representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -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.
- Sierra - Military abbreviation for MDT
- S - short form of 'Sierra'
- America/Boise
- America/Cambridge_Bay
- America/Chihuahua
- America/Denver
- America/Edmonton
- America/Inuvik
- America/Mazatlan
- America/Ojinaga
- America/Shiprock
- America/Yellowknife
- Canada/Mountain
- MST7MDT
- Mexico/BajaSur
- Navajo
- US/Mountain
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
- -06 -
Pacific Daylight Time
Offset: PDT 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 PDT 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
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer timezone, however during winter some places adjust time for one hour back and observe Pacific Standard Time (PST).
End: PDT ended and clocks were set one hour back on Sunday, 01 November 2020, at 2:00 (2:00 am) local time.
Start: PDT starts and clocks are set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.
French: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste

PDT representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -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.
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- US/Pacific-New
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- T - Tango Time Zone
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and 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 & 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 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
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +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.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- 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/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
- Greenwich Mean Time - UTC +0
- GMT+04:30 - UTC +4:30
- GMT-03:00 - UTC -3
- GMT - UTC +1
- GMT+03:00 - UTC +3
- GMT+04:00 - UTC +4
- GMT+11:00 - UTC +11
- 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
- +00 -