PDT
Pacific Daylight Time
GMT -7
ACST/ACDT
Australian Central Standard Time
GMT +9:30
ACDT automatically adjusted to ACST time zone, that is in use

Time Difference

Pacific Daylight Time is 16 hours and 30 minutes behind of Australian Central Standard Time
6:30 am06:30 in PDT is 11:00 pm23:00 in ACST

PDT to ACDT call time
Best time for a conference call or a meeting is between 4am-6am in PDT which corresponds to 9:30pm-11:30pm in ACDT

6:30 am06:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
11:00 pm23:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours

6:30 am06:30 PDT / 11:00 pm23:00 ACST

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

Pacific Daylight Time

Offset: PDT is 7 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Canada, Mexico, United States

Principal Cities: The largest city in the PDT timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose

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

Start: Pacific Daylight Time (PDT) started and clocks were set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.

End: Pacific Daylight Time (PDT) ends and clocks are set one hour back on Sunday, 07 November 2021, at 2:00 (2:00 am) local time.

French: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

PDT Time Zone Geo Map
PDT timezone map

PDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates seven 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
  • Tango - Military abbreviation for PDT
  • T - short form of 'Tango'
IANA/Olson: Reflects PDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
  • US/Pacific-New
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • T - Tango Time Zone

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

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

End: ACDT ended and clocks were set one hour back on Sunday, 04 April 2021, at 3:00 (3:00 am) local time.

Start: ACDT starts and clocks are set one hour forward on Sunday, 03 October 2021, at 2:00 (2:00 am) local time.

ACDT Time Zone Geo Map
ACDT timezone map

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