Updating current time…
I
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ACDT
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Quick answers

Selected conversion

9:00 pm21:00 I (UTC+9), Oct 24, 2026 = 10:30 pm22:30 ACDT (UTC+10:30), Oct 24, 2026

I is 1 hour and 30 minutes behind ACDT.

I and ACDT examples

These examples always use I (UTC+9) and ACDT (UTC+10:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

I is 1 hour and 30 minutes behind ACDT.

How the time difference changes

Depending on seasonal clock changes, I is 30 minutes behind ACST or I is 1 hour and 30 minutes behind ACDT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in I correspond to 9:30 am to 6:30 pm in ACST or working hours of 9:00 am to 6:00 pm in I correspond to 10:30 am to 7:30 pm in ACDT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in I correspond to 09:30 to 18:30 in ACST or working hours of 09:00 to 18:00 in I correspond to 10:30 to 19:30 in ACDT.

Compare I time with ACDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

India Time Zone is 1 hour and 30 minutes behind Australian Central Daylight Time.
9:00 pm21:00 in I is 10:30 pm22:30 in ACDT

I to ACDT call time
Best time for a conference call or a meeting is between 9am-4:30pm09:00-16:30 in I which corresponds to 10:30am-6pm10:30-18:00 in ACDT

9:00 pm21:00 India Time Zone (I). Offset UTC +9:00 hours
10:30 pm22:30 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours

9:00 pm21:00 I / 10:30 pm22:30 ACDT

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
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12:30am next day
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India Time Zone

Offset: I is 9 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Indonesia, Japan, North Korea, Palau, Russia, South Korea, Timor-Leste

Principal Cities: The largest city in the I time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Tokyo, Yokohama, Busan, Pyongyang.

Daylight Saving: Clocks in India Time Zone (I) do not change for daylight saving time, so I stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

I representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for I
  • I - short form of 'India'
Time zones with the GMT +9 offset:
  • AWDT - Australian Western Daylight Time
  • CHOST - Choibalsan Summer Time
  • I - India Time Zone
  • IRKST - Irkutsk Summer Time
  • JST - Japan Standard Time
  • KST - Korea Standard Time
  • PWT - Palau Time
  • TLT - East Timor Time
  • ULAST - Ulaanbaatar Summer Time
  • WIT - Eastern Indonesian Time
  • YAKT - Yakutsk Time

Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the ACDT time zone is Adelaide in Australia, with about 1.469 million people. Other major cities in this time zone include Mount Gambier, Mount Barker, Whyalla, Gawler.

Map of the areas on Australian Central Daylight Time (ACDT)
ACDT part of the year

Today all shaded areas are on ACDT.

Daylight Saving: Australian Central Daylight Time (ACDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Australian Central Standard Time (ACST).

123456789101112Start: Australian Central Daylight Time (ACDT) started on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00. Daylight saving starts annually on the first Sunday of October.

123456789101112End: Australian Central Daylight Time (ACDT) ends on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the first Sunday of April.

See Australia daylight saving time and upcoming clock changes worldwide.

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 an offset of ten hours and thirty minutes 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