KST to EST converter

When it's 9:00 am in Seoul, it's 8:00 pm the day before in New York (7:00 pm the day before from November to March). Your working days don't overlap at all, so someone starts early or stays late for every call.

Convert Korea Standard Time (KST) to Eastern Standard Time (EST) for any date and time.

Eastern Time is 13 hours behind Korea Standard Time from March to November, and 14 hours behind the rest of the year.

Right now KST is UTC+9 and Eastern Time is on EST (UTC−5). Eastern Time switches to daylight saving time on 14 March 2027.

9:00 am to 5:00 pm KST is 7:00 pm EST the day before to 3:00 am EST.

  • 8:00 am KST6:00 pm EST the day before
  • 9:00 am KST7:00 pm EST the day before
  • 10:00 am KST8:00 pm EST the day before
  • 12:00 pm KST10:00 pm EST the day before
  • 3:00 pm KST1:00 am EST
  • 5:00 pm KST3:00 am EST
Live: the current time

  • Korea Standard TimeReference

    South Korea

    Wed, Nov 4

    KST UTC+9ReferenceWorking hours

  • Eastern Time

    US & Canada

    Tue, Nov 3Previous day

    EST UTC−5−14h from Korea Standard TimeOutside working hours

No shared working hours on Wed, Nov 4. Closest fit: 6:00 AM–7:00 AM and 9:00 AM–10:00 AM in Korea Standard Time, when 1 of 2 are at work and the rest are nearest their day.

Share a booking link instead

Working hours: 9:00 AM–5:00 PM, Monday to FridayClosest fit

KST to EST conversion table

Every hour of the day in KST, converted to EST. Hatched cells are working hours (9:00 am to 5:00 pm); rows with the accent bar are working hours in both zones.

KST to EST, hour by hour
KSTESTUntil 14 March 2027EDTFrom 14 March 2027
12:00 am KST10:00 am EST(day before)11:00 am EDT(day before)
1:00 am KST11:00 am EST(day before)12:00 pm EDT(day before)
2:00 am KST12:00 pm EST(day before)1:00 pm EDT(day before)
3:00 am KST1:00 pm EST(day before)2:00 pm EDT(day before)
4:00 am KST2:00 pm EST(day before)3:00 pm EDT(day before)
5:00 am KST3:00 pm EST(day before)4:00 pm EDT(day before)
6:00 am KST4:00 pm EST(day before)5:00 pm EDT(day before)
7:00 am KST5:00 pm EST(day before)6:00 pm EDT(day before)
8:00 am KST6:00 pm EST(day before)7:00 pm EDT(day before)
9:00 am KST7:00 pm EST(day before)8:00 pm EDT(day before)
10:00 am KST8:00 pm EST(day before)9:00 pm EDT(day before)
11:00 am KST9:00 pm EST(day before)10:00 pm EDT(day before)
12:00 pm KST10:00 pm EST(day before)11:00 pm EDT(day before)
1:00 pm KST11:00 pm EST(day before)12:00 am EDT
2:00 pm KST12:00 am EST1:00 am EDT
3:00 pm KST1:00 am EST2:00 am EDT
4:00 pm KST2:00 am EST3:00 am EDT
5:00 pm KST3:00 am EST4:00 am EDT
6:00 pm KST4:00 am EST5:00 am EDT
7:00 pm KST5:00 am EST6:00 am EDT
8:00 pm KST6:00 am EST7:00 am EDT
9:00 pm KST7:00 am EST8:00 am EDT
10:00 pm KST8:00 am EST9:00 am EDT
11:00 pm KST9:00 am EST10:00 am EDT

Best times to meet

A 9-to-5 working day in KST and one in EST don't overlap. The closest fit is 9:00 am KST (7:00 pm EST the day before), when one of you starts early or stays late.

About these time zones

KST: Korea Standard Time

Korea Standard Time is UTC+9.

South Korea, with no daylight saving time. North Korea uses the same offset.

EST: Eastern Standard Time

Eastern Standard Time is UTC−5.

New York, Florida, Georgia, the Carolinas, Ohio, Michigan and the rest of the East Coast, plus Ontario and Quebec in Canada. Panama, Jamaica and Cancún stay on EST all year. ET is the short form for the whole zone.

How the difference changes

Right now EST is 14 hours behind KST. From 14 March 2027, when US clocks go forward, the difference becomes 13 hours.

Frequently asked questions

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