India
IST
ADT/AST
Atlantic Daylight Time
GMT -3
AST automatically adjusted to ADT time zone, that is in use

Time Difference

IST (India Standard Time) is 8 hours and 30 minutes ahead of Atlantic Daylight Time
6:30 am06:30 in Sirumugai, India is 10:00 pm22:00 in ADT

Sirumugai to AST call time
Best time for a conference call or a meeting is between 5:30pm-7:30pm in Sirumugai which corresponds to 8am-10am in AST

6:30 am06:30 IST (India Standard Time) (Sirumugai, India). Offset UTC +5:30 hours
10:00 pm22:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours

6:30 am06:30 Sirumugai, India / 10:00 pm22:00 ADT

Sirumugai, India ADT
12am (midnight) 3:30 pm
1am 4:30 pm
2am 5:30 pm
3am 6:30 pm
4am 7:30 pm
5am 8:30 pm
6am 9:30 pm
7am 10:30 pm
8am 11:30 pm
9am 12:30 am
10am 1:30 am
11am 2:30 am
12pm (noon) 3:30 am
1pm 4:30 am
2pm 5:30 am
3pm 6:30 am
4pm 7:30 am
5pm 8:30 am
6pm 9:30 am
7pm 10:30 am
8pm 11:30 am
9pm 12:30 pm
10pm 1:30 pm
11pm 2:30 pm
0:00 15:30
1:00 16:30
2:00 17:30
3:00 18:30
4:00 19:30
5:00 20:30
6:00 21:30
7:00 22:30
8:00 23:30
9:00 0:30
10:00 1:30
11:00 2:30
12:00 3:30
13:00 4:30
14:00 5:30
15:00 6:30
16:00 7:30
17:00 8:30
18:00 9:30
19:00 10:30
20:00 11:30
21:00 12:30
22:00 13:30
23:00 14:30

Sirumugai Information

Time Zone

Abbreviation / Name
IST - India Standard Time
UTC / GMT Offset
+5:30 hours during India Standard Time, currently in use.

Sirumugai Facts

Country
India
Alternative Names
Sirumugai, Sirumugal, cirumukai, சிறுமுகை
Population
20,066
Currency
Rupee (INR)
Geographic Coordinates
11° 19' N Latitude / 77° 00' E Longitude
International Dialing Code
+91

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 13, 2022 at 2:00 am local time and clocks were set one hour forward to Sunday, March 13, 2022, 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 6, 2022 at 2:00 am local time and clocks are set one hour back to Sunday, November 6, 2022, 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
  • Azores Summer Time - UTC +0
  • Apia Standard Time - UTC +13
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