SGT
Singapore Time
GMT +8
IST
India Standard Time
GMT +5:30
Australia
AEST

Time Difference

Singapore Time is 2 hours and 30 minutes ahead of India Standard Time and 2 hours behind AEST (Australian Eastern Standard Time)
6:00 pm18:00 in SGT is 3:30 pm15:30 in IST and is 8:00 pm20:00 in Sydney, Australia

SGT to IST call time
Best time for a conference call or a meeting is between 10:30am-6pm in SGT which corresponds to 8am-3:30pm in IST
SGT to Sydney call time
Best time for a conference call or a meeting is between 8am-4pm in SGT which corresponds to 10am-6pm in Sydney

6:00 pm18:00 Singapore Time (SGT). Offset UTC +8:00 hours
3:30 pm15:30 India Standard Time (IST). Offset UTC +5:30 hours
8:00 pm20:00 AEST (Australian Eastern Standard Time) (Sydney, Australia). Offset UTC +10:00 hours

6:00 pm18:00 SGT / 3:30 pm15:30 IST / 8:00 pm20:00 Sydney, Australia

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

Singapore Time

Offset: SGT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

SGT Time Zone Geo Map
SGT timezone map

SGT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +08 - basic short
  • +0800 - basic
  • +08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for SGT
  • H - short form of 'Hotel'
SGT Abbreviation: Several time zones share SGT abbreviation and it could refer to these time zones
  • Singapore Time - UTC +8
  • South Georgia Time - UTC -2
Time zones with the GMT +8 offset:
  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time

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
  • Iran Standard Time - UTC +3:30

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 5, 2025 at 2:00 am local time. DST starts annually the on first Sunday of October. Clocks are turned forward 1 hour to Sunday, October 5, 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 3am to 2am Sunday, April 6, 2025 at 3:00 am local time. DST ends annually the on first Sunday of April. Clocks are turned backward 1 hour to Sunday, April 6, 2025, 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