Clockjumper

Timezone conversion

ET to JST Time — Convert Eastern Time (US) to Japan Standard Time

JST is currently 13 hours ahead of ET. The gap shifts across the year: around January JST is 14 hours ahead of ET, and around July it is 13 hours ahead of ET, because one or both zones observe daylight saving.

JST is currently 13 hours ahead of ET.

ET • EDT (UTC-4)
10:45 AM
Thursday, Sep 10
JST • JST (UTC+9)
11:45 PM
Thursday, Sep 10

Abbreviation disambiguation

On Clockjumper, ET refers to the Eastern Time zone of the United States and Canada. ET is an umbrella name rather than a fixed offset: it means EST (UTC−5) in winter and EDT (UTC−4) in summer, and these pages show whichever is currently in force.

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Full ET to JST conversion table

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

Daylight saving and how the gap changes

Around January JST is 14 hours ahead of ET. Around July it is 13 hours ahead of ET. 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 JST ahead of or behind ET right now?
JST is currently 13 hours ahead of ET.
What is the current ET to JST time difference?
Right now the gap is 13 hours — JST is 13 hours ahead of ET.
Does the ET → JST offset change during the year?
Yes. Around January JST is 14 hours ahead of ET; around July it is 13 hours ahead of ET. The converter above always reflects the correct offset for the date you pick.
Does ET observe daylight saving time?
Yes — Eastern Time (US) observes DST, so its UTC offset shifts by 1 hour between winter and summer.
Does JST observe daylight saving time?
No — Japan Standard Time stays at a fixed UTC offset year-round.
What time is 3 AM ET in JST?
3:00 AM ET is 4:00 PM JST.
What time is 8 AM ET in JST?
8:00 AM ET is 9:00 PM JST.
What time is 9 AM ET in JST?
9:00 AM ET is 10:00 PM JST.
What time is 10 AM ET in JST?
10:00 AM ET is 11:00 PM JST.
What time is 11 AM ET in JST?
11:00 AM ET is 12:00 AM (next day) JST.
What time is 12 PM (noon) ET in JST?
12:00 PM ET is 1:00 AM (next day) JST.
What time is 2 PM ET in JST?
2:00 PM ET is 3:00 AM (next day) JST.
What time is 3 PM ET in JST?
3:00 PM ET is 4:00 AM (next day) JST.
What time is 4 PM ET in JST?
4:00 PM ET is 5:00 AM (next day) JST.
What time is 5 PM ET in JST?
5:00 PM ET is 6:00 AM (next day) JST.
What time is 9 PM ET in JST?
9:00 PM ET is 10:00 AM (next day) JST.
What time is 10 PM ET in JST?
10:00 PM ET is 11:00 AM (next day) JST.
When is the best time to schedule a call between ET and JST?
ET and JST 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 ET refer to?
ET refers to Eastern Time (US) (IANA: America/New_York).
What time zone does JST refer to?
JST refers to Japan Standard Time (IANA: Asia/Tokyo).
Is ET on this page the same as other zones that share the letters "ET"?
On Clockjumper, ET refers to the Eastern Time zone of the United States and Canada. ET is an umbrella name rather than a fixed offset: it means EST (UTC−5) in winter and EDT (UTC−4) in summer, and these pages show whichever is currently in force.

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