ACDT to KST Converter
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
10:30 pm22:30 ACDT (UTC+10:30), Oct 18, 2026 = 9:00 pm21:00 KST (UTC+9), Oct 18, 2026
ACDT is 1 hour and 30 minutes ahead of KST.
ACDT and KST examples
These examples always use ACDT (UTC+10:30) and KST (UTC+9). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
ACDT is 1 hour and 30 minutes ahead of KST.
How the time difference changes
Depending on seasonal clock changes, ACST is 30 minutes ahead of KST or ACDT is 1 hour and 30 minutes ahead of KST.
Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 8:30 am to 5:30 pm in KST or working hours of 9:00 am to 6:00 pm in ACDT correspond to 7:30 am to 4:30 pm in KST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 08:30 to 17:30 in KST or working hours of 09:00 to 18:00 in ACDT correspond to 07:30 to 16:30 in KST.
Compare ACDT time with KST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Australian Central Daylight Time is 1 hour and 30 minutes ahead of Korea Standard Time.
10:30 pm22:30 in ACDT is 9:00 pm21:00 in KST
ACDT to KST call time
Best time for a conference call or a meeting is between 10:30am-6pm10:30-18:00 in ACDT which corresponds to 9am-4:30pm09:00-16:30 in KST
10:30 pm22:30 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours
10:30 pm22:30 ACDT / 9:00 pm21:00 KST
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.
| ACDT | KST |
|---|---|
| 10:30pm previous day | |
| 11:30pm previous day | |
| 12:30am | |
| 1:30am | |
| 2:30am | |
| 3:30am | |
| 4:30am | |
| 5:30am | |
| 6:30am | |
| 7:30am | |
| 8:30am | |
| 9:30am | |
| 10:30am | |
| 11:30am | |
| 12:30pm | |
| 1:30pm | |
| 2:30pm | |
| 3:30pm | |
| 4:30pm | |
| 5:30pm | |
| 6:30pm | |
| 7:30pm | |
| 8:30pm | |
| 9:30pm | |
| 22:30 previous day | |
| 23:30 previous day | |
| 00:30 | |
| 01:30 | |
| 02:30 | |
| 03:30 | |
| 04:30 | |
| 05:30 | |
| 06:30 | |
| 07:30 | |
| 08:30 | |
| 09:30 | |
| 10:30 | |
| 11:30 | |
| 12:30 | |
| 13:30 | |
| 14:30 | |
| 15:30 | |
| 16:30 | |
| 17:30 | |
| 18:30 | |
| 19:30 | |
| 20:30 | |
| 21:30 |
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.
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).
Start: 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.
End: 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
- +1030 - basic
- +10:30 - extended
- +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.
- Australia/Adelaide
- Australia/Broken_Hill
- Australia/South
- Australia/Yancowinna
- ACDT - Australian Central Daylight Time
- LHST - Lord Howe Standard Time
Korea Standard Time
Offset: KST is 9 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: North Korea, South Korea
Principal Cities: The largest city in the KST time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Busan, Pyongyang, Incheon, Daegu.
Daylight Saving: Clocks in Korea Standard Time (KST) do not change for daylight saving time, so KST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
KST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +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.
- India - Military abbreviation for KST
- I - short form of 'India'
- Asia/Pyongyang
- Asia/Seoul
- ROK
- Korea Standard Time - UTC +9
- Pyongyang Time - UTC +8:30
- 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