Saint Helena
GMT
ACDT
Australian Central Daylight Time
GMT +10:30

Time Difference

GMT () is 10 hours and 30 minutes behind Australian Central Daylight Time
1:00 am01:00 in Jamestown, Saint Helena is 11:30 am11:30 in ACDT

Jamestown to ACDT call time
Best time for a conference call or a meeting is between 7:30am-9:30am in Jamestown which corresponds to 6pm-8pm in ACDT

1:00 am01:00 GMT () (Jamestown, Saint Helena). Offset UTC 0:00 hours
11:30 am11:30 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours

1:00 am01:00 Jamestown, Saint Helena / 11:30 am11:30 ACDT

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

Jamestown Information

Time Zone

Abbreviation / Name
GMT -
UTC / GMT Offset
0:00 hours during , currently in use.

Jamestown Facts

Country
Saint Helena
Alternative Names
Ceymstaun, Dzeimstauna, Dzeimstaunas, Dzejmstaun, Dzhehjmstaun, Dzhejmstaun, Džeimstauna, Džeimstaunas, HLE, Iacobopolis, Jamestauno, Jamestown, Tzeimstaoun, Zhejmstaun, cems thawn, jeimseutaun, jemsata'una, jemstavun, jemuzutaun, jyms tawn, jymz ٹawn synٹ ہlyna, jymztawn synt hlyna, zhan mu si dui, Ĵamestaŭno, Τζέιμσταουν, Џејмстаун, Джеймстаун, Джэймстаўн, Жеймстаун, גיימסטאון, דזשיימסטאן, جيمس تاون, جیمز ٹاون، سینٹ ہلینا, جیمزتاون، سینت هلینا, جیمزٹاؤن, جەیمستاون, जेम्सटाउन, ஜேம்ஸ்டவுன், เจมส์ทาวน์, ჯეიმზტაუნი, ジェームズタウン, 詹姆斯敦, 제임스타운
Population
637
Currency
Pound (SHP)
Geographic Coordinates
15° 56' S Latitude / 5° 43' W Longitude
International Dialing Code
+290

Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia

Countries: It is used in following countries: Australia

Principal Cities: The largest city in the ACDT timezone is Adelaide from Australia with population about 1.225 million people. Other major cities in the area are Adelaide Hills, Mount Gambier, Morphett Vale, Prospect

ACDT Time Zone Geo Map
ACDT timezone map

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

Daylight saving time clock moves forward for one hour from 2am to 3amStart: Australian Central Daylight Time (ACDT) started on Sunday, October 6, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, October 6, 2024, 3:00 am. Daylight saving starts annually the on first Sunday of October

Daylight saving time clock moves back for one hour from 3am to 2amEnd: Australian Central Daylight Time (ACDT) ends on Sunday, April 6, 2025 at 3:00 am local time and clocks are set one hour back to Sunday, April 6, 2025, 2:00 am local standard time instead. Daylight saving ends annually the on first Sunday of April

ACDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates ten hour and thirty minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects ACDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/South
  • Australia/Yancowinna
Time zones with the GMT +10:30 offset:
  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time