Australia
AEST
IST
India Standard Time
GMT +5:30
ADT
Atlantic Daylight Time
GMT -3

Time Difference

AEST (Australian Eastern Standard Time) is 4 hours and 30 minutes ahead of India Standard Time and 13 hours ahead of Atlantic Daylight Time
12:30 pm12:30 in Sydney, Australia is 8:00 am08:00 in IST and is 11:30 pm23:30 in ADT

Sydney to IST call time
Best time for a conference call or a meeting is between 12:30pm-6pm in Sydney which corresponds to 8am-1:30pm in IST
Sydney to ADT call time
Best time for a conference call or a meeting is between 7:30pm-9:30pm in Sydney which corresponds to 6:30am-8:30am in ADT

12:30 pm12:30 AEST (Australian Eastern Standard Time) (Sydney, Australia). Offset UTC +10:00 hours
8:00 am08:00 India Standard Time (IST). Offset UTC +5:30 hours
11:30 pm23:30 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours

12:30 pm12:30 Sydney, Australia / 8:00 am08:00 IST / 11:30 pm23:30 ADT

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

Sydney Information

Time Zone

Abbreviation / Name
AEST - Australian Eastern Standard Time
AEDT - Australian Eastern Daylight Time
UTC / GMT Offset
+10:00 hours during Australian Eastern Standard Time, currently in use.
+11:00 hours during Australian Eastern Daylight Time.
Daylight Saving Time Change
+1:00 hour - DST is NOT in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 2am to 3am Sunday, October 2, 2022 at 2:00 am local time. DST starts annually the on first Sunday of October. Clocks are turned forward 1 hour to Sunday, October 2, 2022, 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 3am to 2am Sunday, April 3, 2022 at 3:00 am local time. DST ends annually the on first Sunday of April. Clocks are turned backward 1 hour to Sunday, April 3, 2022, 2:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Sydney Facts

Country
Australia
Alternative Names
SYD, Sanctus Dionysius, Sedniejos, Sek-na, Sidnef, Sidnei, Sidnej, Sidneja, Sidnejo, Sidnejus, Sidney, Sidneý, Sidni, Sidnéy, Sidnėjus, Sit-ni, Sit-nì, Syd, Sydneium, Sydney, Sydney City, Sék-nà̤, Sídney, Sîdney, Sėdniejos, citni, shidoni, sidani, sideuni, sidnei, sidni, sidniy, sydny, xi ni, xue li, Σίδνεϋ, Сиднеи, Сидней, Сиднеј, Сидни, Сідней, Сідні, Սիդնեյ, סידני, سيدنى, سيدني, سڈنی, سیدنی, ܣܝܕܢܝ, सिडनी, सिड्नी, सिद्नी, সিডনি, ਸਿਡਨੀ, સીડની, சிட்னி, సిడ్నీ, ಸಿಡ್ನಿ, സിഡ്നി, සිඩ්නි, ซิดนีย์, སིད་ནེ།, ဆစ်ဒနီမြို့, სიდნეი, ሲድኒ, ស៊ីដនីយ៏, シドニー, 悉尼, 雪梨, 시드니
Population
4,627,345
Currency
Dollar (AUD)
Geographic Coordinates
33° 52' S Latitude / 151° 12' E Longitude
International Dialing Code
+61

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: India

Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai

Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same

IST Time Zone Geo Map
IST timezone map

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0530 - basic
  • +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Calcutta
  • Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2

Atlantic Daylight Time

Offset: ADT is 3 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Bermuda, Canada, Greenland

Principal Cities: The largest city in the ADT timezone is Halifax from Canada with population about 359,111 people. Other major cities in the area are Sydney, Dartmouth, Saint John, Moncton

French: HAA - Heure Avancée de l'Atlantique

ADT Time Zone Geo Map
ADT timezone map

Daylight Saving: Atlantic Daylight Time (ADT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Atlantic Standard Time (AST).

Daylight saving time clock moves forward for one hour from 2am to 3amStart: Atlantic Daylight Time (ADT) started 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. Daylight saving starts annually the on second Sunday of March

Daylight saving time clock moves back for one hour from 2am to 1amEnd: Atlantic Daylight Time (ADT) ends 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 local standard time instead. Daylight saving ends annually the on first Sunday of November

ADT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -03 - basic short
  • -0300 - basic
  • -03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates three 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
  • Papa - Military abbreviation for ADT
  • P - short form of 'Papa'
IANA/Olson: Reflects ADT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Glace_Bay
  • America/Goose_Bay
  • America/Halifax
  • America/Moncton
  • America/Thule
  • Atlantic/Bermuda
  • Canada/Atlantic
ADT Abbreviation: Several time zones share ADT abbreviation and it could refer to these time zones
  • Atlantic Daylight Time - UTC -3
  • Arabian Daylight Time - UTC +4
  • Apia Daylight Time - UTC -10
Time zones with the GMT -3 offset:
  • ADT - Atlantic Daylight Time
  • PMT - Pierre & Miquelon Standard Time
  • PMST - Pierre & Miquelon Standard Time
  • WGT - West Greenland Time
  • AMST - Amazon Summer Time
  • ART - Argentina Time
  • BRT - Brasília time
  • CLST - Chile Summer Time
  • FKST - Falkland Islands Summer Time
  • GFT - French Guiana Time
  • P - Papa Time Zone
  • PYST - Paraguay Summer Time
  • SRT - Suriname Time
  • UYT - Uruguay Time