KST to IDT Converter
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Quick answers
Selected conversion
9:00 pm21:00 KST (UTC+9), Oct 18, 2026 = 3:00 pm15:00 IDT (UTC+3), Oct 18, 2026
KST is 6 hours ahead of IDT.
KST and IDT examples
These examples always use KST (UTC+9) and IDT (UTC+3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
KST is 6 hours ahead of IDT.
How the time difference changes
For most of the year, KST is 6 hours ahead of IDT. From Oct 25, 2026 to Mar 26, 2027, KST is 7 hours ahead of IST.
For most of the year, working hours of 9:00 am to 6:00 pm in KST correspond to 3:00 am to 12:00 pm in IDT. At other times of the year, working hours of 9:00 am to 6:00 pm in KST correspond to 2:00 am to 11:00 am in IST.For most of the year, working hours of 09:00 to 18:00 in KST correspond to 03:00 to 12:00 in IDT. At other times of the year, working hours of 09:00 to 18:00 in KST correspond to 02:00 to 11:00 in IST.
Compare KST time with IDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Korea Standard Time is 6 hours ahead of Israel Daylight Time.
9:00 pm21:00 in KST is 3:00 pm15:00 in IDT
KST to IDT call time
Best time for a conference call or a meeting is between 3pm-6pm15:00-18:00 in KST which corresponds to 9am-12pm09:00-12:00 in IDT
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours
3:00 pm15:00 Israel Daylight Time (IDT). Offset UTC +3:00 hours
9:00 pm21:00 KST / 3:00 pm15:00 IDT
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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
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