IDT to KST Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
3:00 pm15:00 IDT (UTC+3), Oct 18, 2026 = 9:00 pm21:00 KST (UTC+9), Oct 18, 2026
IDT is 6 hours behind KST.
IDT and KST examples
These examples always use IDT (UTC+3) 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.
IDT is 6 hours behind KST.
How the time difference changes
For most of the year, IDT is 6 hours behind KST. From Oct 25, 2026 to Mar 26, 2027, IST is 7 hours behind KST.
For most of the year, working hours of 9:00 am to 6:00 pm in IDT correspond to 3:00 pm to 12:00 am (next day) in KST. At other times of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 4:00 pm to 1:00 am (next day) in KST.For most of the year, working hours of 09:00 to 18:00 in IDT correspond to 15:00 to 00:00 (next day) in KST. At other times of the year, working hours of 09:00 to 18:00 in IST correspond to 16:00 to 01:00 (next day) in KST.
Compare IDT time with KST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Israel Daylight Time is 6 hours behind Korea Standard Time.
3:00 pm15:00 in IDT is 9:00 pm21:00 in KST
IDT to KST call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in IDT which corresponds to 3pm-6pm15:00-18:00 in KST
3:00 pm15:00 Israel Daylight Time (IDT). Offset UTC +3:00 hours
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours
3:00 pm15:00 IDT / 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.
| IDT | KST |
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Israel Daylight Time
Offset: IDT is 3 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Israel
Principal Cities: The largest city in the IDT time zone is Jerusalem in Israel, with about 971,800 people. Other major cities in this time zone include Tel Aviv, Haifa, Rishon LeTsiyyon, Petaẖ Tiqva.
Today all shaded areas are on IDT.
Daylight Saving: Israel Daylight Time (IDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Israel Standard Time (IST).
Start: Israel Daylight Time (IDT) started on Friday, March 27, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Friday, March 27, 2026, 3:00 am03:00.
End: Israel Daylight Time (IDT) ends on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
See Israel daylight saving time and upcoming clock changes worldwide.
IDT representations, usage and related time zones
- +03 - basic short
- +0300 - basic
- +03:00 - extended
- +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the east of the zero meridian.
- Charlie - Military abbreviation for IDT
- C - short form of 'Charlie'
- Asia/Jerusalem
- Asia/Tel_Aviv
- Israel
- EEST - Eastern European Summer Time
- MSK - Moscow Standard Time
- AST - Arabia Standard Time
- C - Charlie Time Zone
- EAT - Eastern Africa Time
- FET - Further Eastern European Time
- IDT - Israel Daylight Time
- TRT - Turkey 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