California, USA
PDT
ADT/AST
Atlantic Daylight Time
GMT -3
AST automatically adjusted to ADT time zone, that is in use

Time Difference

PDT (Pacific Daylight Time) is 4 hours behind Atlantic Daylight Time
1:30 am01:30 in Los Angeles, CA, USA is 5:30 am05:30 in ADT

Los Angeles to AST call time
Best time for a conference call or a meeting is between 8am-3pm in Los Angeles which corresponds to 11am-6pm in AST

1:30 am01:30 PDT (Pacific Daylight Time) (Los Angeles, CA, USA). Offset UTC -7:00 hours
5:30 am05:30 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours

1:30 am01:30 Los Angeles, CA, USA / 5:30 am05:30 ADT

Los Angeles, CA, USA ADT
12am (midnight) 4am
1am 5am
2am 6am
3am 7am
4am 8am
5am 9am
6am 10am
7am 11am
8am 12pm (noon)
9am 1pm
10am 2pm
11am 3pm
12pm (noon) 4pm
1pm 5pm
2pm 6pm
3pm 7pm
4pm 8pm
5pm 9pm
6pm 10pm
7pm 11pm
8pm 12am (midnight)
9pm 1am
10pm 2am
11pm 3am
0:00 4:00
1:00 5:00
2:00 6:00
3:00 7:00
4:00 8:00
5:00 9:00
6:00 10:00
7:00 11:00
8:00 12:00
9:00 13:00
10:00 14:00
11:00 15:00
12:00 16:00
13:00 17:00
14:00 18:00
15:00 19:00
16:00 20:00
17:00 21:00
18:00 22:00
19:00 23:00
20:00 0:00
21:00 1:00
22:00 2:00
23:00 3:00

Los Angeles Information

Time Zone

Abbreviation / Name
PDT - Pacific Daylight Time
HNP - Heure Normale du Pacifique
UTC / GMT Offset
-7:00 hours during Pacific Daylight Time, currently in use.
-8:00 hours during Heure Normale du Pacifique.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 2am to 3am Sunday, March 9, 2025 at 2:00 am local time. DST starts annually the on second Sunday of March. Clocks are turned forward 1 hour to Sunday, March 9, 2025, 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves back for one hour from 2am to 1am Sunday, November 2, 2025 at 2:00 am local time. DST ends annually the on first Sunday of November. Clocks are turned backward 1 hour to Sunday, November 2, 2025, 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Los Angeles Facts

Country
USA
State
California
Alternative Names
Angelopolis, Ciudad De los Angelos, Cuidad De Los Angelos, El Pueblo de Nuestra Senora La Reina de Los Angeles de Porcivncula, El Pueblo de Nuestra Senora de los Angeles de Porciuncula, El Pueblo de Nuestra Señora de los Ángeles de Porciúncula, El Pueblo del Rio de Nuestra Senora, L.A., LA, LAX, La Reina de Los Angeles de Porciuncula, Lok-chham-ki, Los And'eles, Los Andzelas, Los Andzeles, Los Andzheles, Los Andzhelis, Los Andželas, Los Andželes, Los Angeles, Los Anjeles, Los Anjélés, Los Antzeles, Los Anxheles, Los Anxhelos, Los Anzeles, Los Anzheles, Los Ángeles, Los-Anceles, Los-Andzeles, Los-Andzhehles, Los-Andzheles, Los-Angeleso, Los-Anjeles, Los-Anzheles, Los-Anzheles shaary, Los-Anĝeleso, Losandzelosa, Losandželosa, Lo̍k-chhám-kî, Lungsod ng Los Angeles, Luos Andzels, Luos Andžels, Os Anxeles, Os Ánxeles, Pueblo De Los Angeles, Pueblo Los Angelos, el-ei, las aynjls, las encalas, las enjales, las enjalis, lasa ainjalasa, lasa enjalasa, lasa enjilasa, leas anceles, los-anjelesi, losa enjelasa, losa enjelisa, losa enjelsa, loseuaenjelleseu, loseuenjelleseu, ls anjls, luo shan ji, lws anjls, lws anjlws, lws anjlys, lws ʼngls, rosanzerusu, Λος Άντζελες, Лос Анджелес, Лос Анджелис, Лос Андьелес, Лос Анжелес, Лос Анђелес, Лос Анџелес, Лос Анҷелес, Лос Анӂелес, Лос-Анджелес, Лос-Анджэлес, Лос-Анжелес, Лос-Анжелес шаары, Лос-Анџелес, Լոս Անջելես, לאס אנדזשעלעס, לוס אנגלס, لاس اینجلس, لس آنجلس, لس‌آنجلس, لوس آنجلس, لوس أنجلوس, لوس ئانجېلېس, لوس انجليس, لوس‌آنجلس, لۆس ئانجلەس, लस एञ्जिलस, लस एन्जलस, लास एंजलस, लॉस एंजेलिस, लॉस एंजेल्स, লস অ্যাঞ্জেলেস, ਲਾਸ ਐਂਜਲਸ, લોસ એન્જેલસ, லாஸ் ஏஞ்சலஸ், లాస్ ఏంజలెస్, ಲಾಸ್ ಎಂಜಲೀಸ್, ലോസ് ആഞ്ചെലെസ്, ลอสแอนเจลิส, လော့စ်အိန်ဂျယ်လိစ်မြို့, ლოს-ანჯელესი, ሎስ አንጄሌስ, ロサンゼルス, 洛杉矶, 洛杉磯, 로스앤젤레스, 로스엔젤레스, 엘에이
Population
3,971,883
Currency
Dollar (USD)
Geographic Coordinates
34° 03' N Latitude / 118° 14' W Longitude
International Dialing Code
+1

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

French: HNA - Heure Normale de l'Atlantique

Spanish: AST - Tiempo Estándar del Atlántico

AST Time Zone Geo Map
AST timezone map

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 Atlantic Daylight Time (ADT).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Atlantic Standard Time (AST) has ended on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.

Daylight saving time clock moves back for one hour from 2am to 1amStart: Atlantic Standard Time (AST) starts on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.

AST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for AST
  • Q - short form of 'Quebec'
IANA/Olson: Reflects AST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
  • Arabian Standard Time - UTC +3
  • Amazon Standard Time - UTC -4
  • Apia Standard Time - UTC +13
  • Azores Summer Time - UTC +0
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
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time