Time in Japan

Japan operates on a single, year-round time zone: Japan Standard Time (JST), which sits at UTC+9. Unlike most of the world's major economies, Japan abolished daylight saving time in 1952 and has never brought it back. That means the offset never changes — JST is always UTC+9, every single day of the year.

This consistency is one of Japan's most traveler- and business-friendly features. You never have to worry about a weekend clock change disrupting your meeting schedule or flight connection. The sun rises noticeably early in Tokyo during summer (around 4:25 AM in June) and sets relatively early in winter (around 4:28 PM in December), but Japanese society simply adjusts its rhythms rather than moving the clocks.

For a real-time check of the current hour in Japan alongside dozens of other cities, visit our World Clock page. If you specifically need Tokyo's local time — the capital and Japan's largest city — see our dedicated time in Tokyo page. Neighboring South Korea shares the exact same UTC+9 offset; you can compare schedules on our time in Korea page.

The most striking feature of the Japan–US time gap is the date line effect: for most of the business day in America, it is already the next calendar day in Japan. This catches travelers and remote workers off guard constantly.

Here is how JST compares to the three major US time zones:

Key insight: Because Japan does not observe DST, the gap shrinks by one hour when the US springs forward in March and grows back when the US falls back in November. During US daylight saving (roughly March–November), Japan is 13 hours ahead of New York rather than 14.

Practical examples:

• Monday 9 AM in New York = Monday 11 PM in Tokyo (same day, late evening)
• Monday 3 PM in Los Angeles = Tuesday 8 AM in Tokyo (next day, morning!)
• Friday 5 PM in Chicago = Saturday 7 AM in Tokyo (next day — the weekend has already started)

For scheduling calls, remember the golden rule: if it's Monday morning in the US, it's already Monday night or Tuesday in Japan. Check current New York time on our New York time page.

The table below shows every hour of the New York day alongside the corresponding Japan time. This covers both US Standard Time (November–March, EST, UTC−5) and US Daylight Saving Time (March–November, EDT, UTC−4). Japan is shown as JST (UTC+9) throughout since it never changes.

Note: During US DST (EDT, UTC−4), subtract 1 hour from the Japan column — the gap narrows to 13 hours.

As the table makes clear, there is no business-hours overlap between New York and Japan on a shared calendar day. Any real-time collaboration requires one party to work outside standard hours. Many US companies with Japan offices hold calls at 7–8 AM Eastern, which is 8–9 PM JST — late for Japan but manageable.

The Tokyo Stock Exchange (TSE) — now operating under the umbrella of Japan Exchange Group (JPX) — is Asia's largest and the world's third-largest by market capitalization. It is home to the iconic Nikkei 225 index, which US investors watch as a leading indicator of Asian market sentiment.

TSE Trading Hours (JST):

TSE Hours Converted to US Times:

For US investors, this means the TSE opens and closes during the overnight hours in America. Pre-market trading on US exchanges often reacts to TSE performance from the night before. The Nikkei 225 close (3:30 PM JST, roughly 1:30–2:30 AM EST) influences early pre-market sentiment in New York. Many professional traders and Japan-focused ETF holders monitor TSE via financial terminals in the late evening EST.

Japan is renowned for its demanding work culture. Standard office hours run 9:00 AM to 6:00 PM JST, but Japan is globally famous for its culture of karoshi (過労死, death from overwork) and deeply ingrained overtime expectations. It is not unusual for employees to remain at the office until 8, 9, or even 10 PM JST, especially in Tokyo's financial and tech sectors.

Japanese National Holidays can catch US companies off guard. Japan has 16 public holidays per year, including Golden Week (late April – early May, up to 5 days consecutive), Obon (mid-August, not a national holiday but widely observed), and a New Year break (December 29 – January 3). During Golden Week, many Japanese businesses are effectively closed for an entire week.

Best Times to Call Japan from the United States:

Business etiquette tips for calls with Japan:

• Always confirm the meeting time in JST explicitly to avoid date confusion
• Japanese business culture values punctuality — join calls on time or a minute early
• Meetings often start and end formally; allow time for pleasantries
• Email is heavily used; follow up calls with a written summary

For a side-by-side look at Japan time versus Korean business hours (same UTC+9 timezone), see our time in Korea page. Use our alarm clock to set a morning reminder for overnight TSE sessions.