AST to CEST Converter

Time Difference

Atlantic Standard Time is 5 hours behind of Central European Time
10:00 pm22:00 in AST is 3:00 am03:00 in CET

AST to CEST call time
Best time for a conference call or a meeting is between 8am-12pm in AST which corresponds to 2pm-6pm in CEST

10:00 pm22:00 Atlantic Standard Time (AST). Offset UTC -4:00 hours
3:00 am03:00 Central European Time (CET). Offset UTC +1:00 hour

10:00 pm22:00 AST / 3:00 am03:00 CET

Atlantic Standard Time

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

Countries: It is used in following countries: Antigua & Barbuda, Anguilla, Aruba, Barbados, St Barthelemy, Bermuda, Caribbean NL, Canada, Curaçao, Dominica, Dominican Republic, Grenada, Greenland, Guadeloupe, St Kitts & Nevis, St Lucia, St Martin (French), Martinique, Montserrat, Puerto Rico, St Maarten (Dutch), Trinidad & Tobago, St Vincent, Virgin Islands (UK), Virgin Islands (US)

Principal Cities: The largest city in the AST timezone is Santo Domingo from Dominican Republic with population about 2.202 million people. Other major cities in the area are Santiago de los Caballeros, Santo Domingo Oeste, San Juan, Halifax

Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Atlantic Daylight Time (ADT).

Start: AST started and clocks were set one hour back on Sunday, 01 November 2020, at 2:00 (2:00 am) local time.

End: AST ends and clocks are set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.

French: HNA - Heure Normale de l'Atlantique

Spanish: AST - Tiempo Estándar del Atlántico

AST 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 AST
• Q - short form of 'Quebec'

• America/Anguilla
• America/Antigua
• America/Aruba
• America/Barbados
• America/Blanc-Sablon
• America/Curacao
• America/Dominica
• America/Glace_Bay
• America/Goose_Bay
• America/Grenada
• America/Guadeloupe
• America/Halifax
• America/Kralendijk
• America/Lower_Princes
• America/Marigot
• America/Martinique
• America/Moncton
• America/Montserrat
• America/Port_of_Spain
• America/Puerto_Rico
• America/Santo_Domingo
• America/St_Barthelemy
• America/St_Kitts
• America/St_Lucia
• America/St_Thomas
• America/St_Vincent
• America/Thule
• America/Tortola
• America/Virgin
• Atlantic/Bermuda
• Canada/Atlantic

AST Abbreviation: Several time zones share AST abbreviation and it could refer to these time zones

• Atlantic Standard Time - UTC -4
• Arabia Standard Time - UTC +3

Time zones with the GMT -4 offset:

• 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 -
• EWT -

Central European Summer Time

Offset: CEST is 2 hours ahead Greenwich Mean Time (GMT) and is used in Europe

Countries: It is used in following countries: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Vatican City

Principal Cities: The largest city in the CEST timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Budapest

Daylight Saving: Central European Summer Time (CEST) is a daylight saving/summer timezone, however during winter some places adjust time for one hour back and observe Central European Time (CET).

End: CEST ended and clocks were set one hour back on Sunday, 25 October 2020, at 3:00 (3:00 am) local time.

Start: CEST starts and clocks are set one hour forward on Sunday, 28 March 2021, at 2:00 (2:00 am) local time.

German: MESZ - Mitteleuropäische Sommerzeit

CEST representations, usage and related time zones

• +02 - basic short
• +0200 - basic
• +02:00 - extended

• +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates two hour and zero minutes time differences to the east of the zero meridian.

• Bravo - Military abbreviation for CEST
• B - short form of 'Bravo'

• Africa/Ceuta
• Arctic/Longyearbyen
• Atlantic/Jan_Mayen
• CET
• Europe/Amsterdam
• Europe/Andorra
• Europe/Belgrade
• Europe/Berlin
• Europe/Bratislava
• Europe/Brussels
• Europe/Budapest
• Europe/Busingen
• Europe/Copenhagen
• Europe/Gibraltar
• Europe/Ljubljana
• Europe/Luxembourg
• Europe/Madrid
• Europe/Malta
• Europe/Monaco
• Europe/Oslo
• Europe/Paris
• Europe/Podgorica
• Europe/Prague
• Europe/Rome
• Europe/San_Marino
• Europe/Sarajevo
• Europe/Skopje
• Europe/Stockholm
• Europe/Tirane
• Europe/Vaduz
• Europe/Vatican
• Europe/Vienna
• Europe/Warsaw
• Europe/Zagreb
• Europe/Zurich
• Poland

Time zones with the GMT +2 offset:

• CEST - Central European Summer Time
• EET - Eastern European Time
• MESZ - Mitteleuropäische Sommerzeit
• B - Bravo Time Zone
• CAT - Central Africa Time
• IST - Israel Standard Time
• SAST - South Africa Standard Time
• WAST - West Africa Summer Time