Our free JST to EST converter instantly translates Japan Standard Time (Tokyo) into Eastern Standard Time (New York). Whether you are scheduling a meeting between Tokyo, Osaka, or Kyoto and New York, Boston, or Washington DC, this tool removes the mental math and shows you the exact local times on both sides of the Pacific.
Japan operates on a single time zone year-round: Asia/Tokyo (JST, UTC+9). Japan does not observe Daylight Saving Time.
The United States East Coast shifts between two time zones:
Tokyo is 14 hours ahead of New York during EST (winter standard time). Tokyo is 13 hours ahead during EDT (US daylight saving). Since Japan never changes, the gap widens or narrows with US clock adjustments. (Time-zone offsets follow the IANA Time Zone Database, the authoritative source operating systems use for time-zone rules.)
The 13–14 hour time difference makes synchronous meetings challenging. Tokyo morning is US previous evening; US morning is Japan evening or night.
9:00 AM – 11:00 AM JST
Converts to 7:00 PM – 9:00 PM EST (same calendar day) or 6:00 PM – 8:00 PM EDT (same day during US daylight saving). Early evening on the East Coast — reasonable for after-hours calls but late for standard business hours.
8:00 AM – 9:00 AM EST (or 8:00 AM – 9:00 AM EDT)
Converts to 10:00 PM – 11:00 PM JST (same day) — late evening in Tokyo, workable but not ideal. Evening coffee meetings or wrap-up calls work best.
Japan (JST) is 14 hours ahead of Eastern Standard Time (EST, winter) and 13 hours ahead of Eastern Daylight Time (EDT, summer/fall). The difference changes twice yearly when the US adjusts its clocks; Japan's time never changes.
No. Japan operates on a single fixed time zone, Asia/Tokyo (JST, UTC+9), year-round. It has not observed Daylight Saving Time since 1951. This makes Japan "ahead by a fixed amount" relative to US Standard Time, but the gap to US Daylight Time is one hour smaller.
9:00 AM JST is 7:00 PM EST the previous calendar day (during Eastern Standard Time). During Eastern Daylight Time (roughly March–November), it is 6:00 PM EDT the previous day. Use the converter above to account for the exact current period.
EST is 14 hours behind JST, shifting by an hour around daylight-saving changes. 100% free, no registration, and fully private — every conversion happens in your browser.
Uses the IANA database for Asia/Tokyo and America/New_York, so daylight saving is applied automatically — no manual offset math.
Convert JST to EST the moment you pick a time. No signup, no ads in your way, nothing to install.
Spot the wide 14 hours gap between Tokyo and New York so you can plan async or off-hours calls.
Every conversion runs locally in your browser using your device clock. Your dates and times never touch a server.
Reverse conversion
From Japan Standard Time
From Japan Standard Time
To Eastern Time
To Eastern Time
To Eastern Time
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