Clockjumper

Timezone conversion

KST to EST Time — Convert Korea Standard Time to Eastern Standard Time (US)

EST is currently 13 hours behind KST. The gap shifts across the year: around January EST is 14 hours behind KST, and around July it is 13 hours behind KST, because one or both zones observe daylight saving.

EST is currently 13 hours behind KST.

KST • KST (UTC+9)
11:31 PM
Thursday, Sep 10
EST • EDT (UTC-4)
10:31 AM
Thursday, Sep 10

Abbreviation disambiguation

On Clockjumper, EST refers to Eastern Standard Time in the United States (UTC−5). The US East Coast observes EST in winter and switches to EDT (UTC−4) during daylight saving time.

Interactive converter

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Full KST to EST conversion table

KSTEST
12:00 AM11:00 AM(previous day)
1:00 AM12:00 PM(previous day)
2:00 AM1:00 PM(previous day)
3:00 AM2:00 PM(previous day)
4:00 AM3:00 PM(previous day)
5:00 AM4:00 PM(previous day)
6:00 AM5:00 PM(previous day)
7:00 AM6:00 PM(previous day)
8:00 AM7:00 PM(previous day)
9:00 AM8:00 PM(previous day)
10:00 AM9:00 PM(previous day)
11:00 AM10:00 PM(previous day)
12:00 PM11:00 PM(previous day)
1:00 PM12:00 AM
2:00 PM1:00 AM
3:00 PM2:00 AM
4:00 PM3:00 AM
5:00 PM4:00 AM
6:00 PM5:00 AM
7:00 PM6:00 AM
8:00 PM7:00 AM
9:00 PM8:00 AM
10:00 PM9:00 AM
11:00 PM10:00 AM

Daylight saving and how the gap changes

Around January EST is 14 hours behind KST. Around July it is 13 hours behind KST. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.

Frequently asked questions

Is EST ahead of or behind KST right now?
EST is currently 13 hours behind KST.
What is the current KST to EST time difference?
Right now the gap is 13 hours — EST is 13 hours behind KST.
Does the KST → EST offset change during the year?
Yes. Around January EST is 14 hours behind KST; around July it is 13 hours behind KST. The converter above always reflects the correct offset for the date you pick.
Does KST observe daylight saving time?
No — Korea Standard Time stays at a fixed UTC offset year-round.
Does EST observe daylight saving time?
EST is itself the standard-time form. Eastern Standard Time (US) is in force at UTC-5 through the winter months; outside that window the same zone is on EDT (UTC-4).
What time is 3 AM KST in EST?
3:00 AM KST is 2:00 PM (previous day) EST.
What time is 8 AM KST in EST?
8:00 AM KST is 7:00 PM (previous day) EST.
What time is 9 AM KST in EST?
9:00 AM KST is 8:00 PM (previous day) EST.
What time is 10 AM KST in EST?
10:00 AM KST is 9:00 PM (previous day) EST.
What time is 11 AM KST in EST?
11:00 AM KST is 10:00 PM (previous day) EST.
What time is 12 PM (noon) KST in EST?
12:00 PM KST is 11:00 PM (previous day) EST.
What time is 2 PM KST in EST?
2:00 PM KST is 1:00 AM EST.
What time is 3 PM KST in EST?
3:00 PM KST is 2:00 AM EST.
What time is 4 PM KST in EST?
4:00 PM KST is 3:00 AM EST.
What time is 5 PM KST in EST?
5:00 PM KST is 4:00 AM EST.
What time is 9 PM KST in EST?
9:00 PM KST is 8:00 AM EST.
What time is 10 PM KST in EST?
10:00 PM KST is 9:00 AM EST.
When is the best time to schedule a call between KST and EST?
KST and EST have no direct 09:00–17:00 overlap on the same calendar day. Consider early-morning or late-evening slots on one side, or an asynchronous handoff.
What time zone does KST refer to?
KST refers to Korea Standard Time (IANA: Asia/Seoul).
What time zone does EST refer to?
EST refers to Eastern Standard Time (US) (IANA: America/New_York).
Is EST on this page the same as other zones that share the letters "EST"?
On Clockjumper, EST refers to Eastern Standard Time in the United States (UTC−5). The US East Coast observes EST in winter and switches to EDT (UTC−4) during daylight saving time.

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