★ TIME & DATE · WORLD CLOCK · JAPAN
Noon on January 15, 2027 in Japan is 03:00 UTC and 22:00 EST the day before in New York. Enter a date and time in Japan Standard Time to get the matching UTC and US times, with the date shown for each zone.
Japan uses one time zone for the whole country, with no daylight saving. Enter a Japan date and time and the converter shows what time it is in UTC and across the United States — including when the date flips.
Japan Standard Time (JST) is UTC+9 all year, from Hokkaido in the north to Okinawa in the south, and Japan has had no daylight saving time since 1951. That makes conversion simple on the Japan side: subtract 9 hours to get UTC, every day of the year, with no spring-forward or fall-back to track. The complication is entirely on the American side, where the US zones shift with daylight saving while Japan does not, so the gap between Japan and New York is 14 hours in the northern winter and 13 hours in the summer. A noon meeting in Tokyo is therefore 22:00 the previous evening in New York in January, but 23:00 the previous evening in July.
Japan is 13 to 14 hours ahead of the US zones, which is more than half a day, so a Japan daytime always lands on the previous US evening. That is the single most common scheduling mistake with Japan: sending a calendar invite dated for the Japan day and expecting the American side to join on that same date. Always read the date beside each converted time, not just the hour. Hawaii, which never observes daylight saving, is the steadiest comparison at 19 hours behind Japan all year — noon in Tokyo is always 17:00 the previous day in Honolulu.
| Output | Formula | What it means |
|---|---|---|
| UTC time | JST − 9 hours | 12:00 JST = 03:00 UTC, year-round. |
| Eastern time | UTC − 5 hours (winter) or 4 hours (summer) | 22:00 EST Jan 14 in winter, 23:00 EDT Jul 14 in summer. |
| Central time | UTC − 6 hours (winter) or 5 hours (summer) | 21:00 CST Jan 14 in winter, 22:00 CDT Jul 14 in summer. |
| Mountain time | UTC − 7 hours (winter) or 6 hours (summer) | 20:00 MST Jan 14 in winter, 21:00 MDT Jul 14 in summer. |
| Pacific time | UTC − 8 hours (winter) or 7 hours (summer) | 19:00 PST Jan 14 in winter, 20:00 PDT Jul 14 in summer. |
| Hawaii time | UTC − 10 hours, year-round | 17:00 HST on the previous day, winter and summer alike. |
JST is UTC+9 with no daylight saving, and Japan has observed no daylight saving since 1951, so the Japan side of every conversion is exact. US times follow the daylight-saving rules in force on the entered date, which the converter reads from the browser's time-zone data; if those rules ever change by law, results for dates after the change depend on an updated browser. On this page, JST means Japan Standard Time only — do not confuse it with any other abbreviation that shares the letters — and there is no JDT (Japan Daylight Time) in use. This is the country-level Japan page; for a city framing, see the separate Tokyo time converter.
Bright Side Kit. "Japan Time Converter: JST to UTC and US Time Zones." https://brightoolbox.com/japan-time-converter/ Accessed October 24, 2026.Japan Standard Time (JST), UTC+9, for the whole country, all year. There are no regional Japanese time zones and no daylight saving time in Japan.
No. Japan has had no daylight saving time since 1951, so JST stays at UTC+9 through both summer and winter. The US side shifts instead, which changes the gap by one hour between seasons.
03:00 UTC, year-round: subtract 9 hours from JST. Noon on January 15, 2027 in Japan is 03:00 UTC on January 15.
It depends on the season: 22:00 EST on the previous day in the northern winter, and 23:00 EDT on the previous day in the summer. Japan does not shift, so the US daylight-saving change moves the answer by an hour.
Because Japan is 13 to 14 hours ahead of the US zones — more than half a day — a Japan daytime is always the previous evening in the United States. Always check the date beside each converted time.
No, there is no JDT in use. Japan has a single standard time, JST, all year. If you see JDT on a schedule, it is an error or refers to something other than Japan time.
Hawaii is 19 hours behind Japan all year, because neither place observes daylight saving. Noon in Tokyo is always 17:00 the previous day in Honolulu.
This page covers Japan as a country: one time zone, JST, for the whole nation, with no daylight saving since 1951. The Tokyo page frames the same conversion around the city; the times agree, but this page explains the country-level rule.