Time Zone Converters

All 40 converters on timein.yokohama

Yokohama runs on Japan Standard Time, a fixed UTC+9 offset that has not changed since 1951. The city does not spring forward or fall back. That permanence creates a shifting gap with any city that observes daylight saving time: the offset between Yokohama and New York shrinks by an hour in March, then widens again in November. The converter below gives you the number right now. The table further down shows you whether that number will hold.

Yokohama time converter

Use the dropdown to pick a city and see the current JST offset. The tool refreshes automatically.

How to convert Yokohama time without getting caught out

Pick your city from the dropdown.
Read the current JST offset.
Check the table below to see if the difference changes in your spring or autumn.

If you are scheduling a recurring meeting, do not rely on today's offset. Set a reminder to re-check when your city enters or exits DST.

JST (UTC+9) explained

Japan Standard Time is fixed at UTC+9. The IANA time zone for Yokohama is Asia/Tokyo. Japan last changed its clocks in 1951. There is no spring-forward or fall-back. This means the time difference between Yokohama and any city that observes DST changes twice every year.

Why the Yokohama time difference to your city keeps shifting

The critical rule: the offset between Yokohama and another city is not always constant.

For cities that do not observe DST (most of China, India, South Korea, Singapore, Dubai), the difference is constant year-round.
For cities that do observe DST (most of North America, Europe, Australia, New Zealand, parts of South America), the difference shifts by one hour in spring and again in autumn.

Example: On 15 January 2026, New York is 14 hours behind Yokohama. On 15 July 2026, New York is 13 hours behind. That one-hour shift happens because New York moves to EDT (UTC-4) while Yokohama stays at JST (UTC+9).

Always check the current DST status of the other city before converting.

Most popular city conversions

For detailed breakdowns of specific city pairs, see: - Yokohama vs New York - Yokohama vs London - Yokohama vs Los Angeles - Yokohama vs Sydney

Quick reference: Yokohama offset to major time zones

City	Offset from Yokohama (January 2026)	Offset from Yokohama (July 2026)	Constant?
New York	14 hours behind	13 hours behind	No
Los Angeles	17 hours behind	16 hours behind	No
London	9 hours behind	8 hours behind	No
Paris	8 hours behind	7 hours behind	No
Dubai	5 hours behind	5 hours behind	Yes
Mumbai	3.5 hours behind	3.5 hours behind	Yes
Singapore	1 hour behind	1 hour behind	Yes
Sydney	2 hours ahead	1 hour ahead	No
Johannesburg	7 hours behind	7 hours behind	Yes
São Paulo	12 hours behind	12 hours behind	No

January and July represent winter and summer in the Northern Hemisphere. Southern Hemisphere cities (Sydney, São Paulo) follow the opposite DST pattern. Always verify.

Frequently asked questions

Is Yokohama time the same as Tokyo time?

Yes. Yokohama and Tokyo share the same IANA time zone (`Asia/Tokyo`). Both use Japan Standard Time (JST), UTC+9. No separate municipal time authority exists.

Why does the time difference between Yokohama and New York change?

New York observes daylight saving time. It moves from EST (UTC-5) to EDT (UTC-4) in March and back in November. Yokohama does not change its clocks. The gap shifts from 14 hours to 13 hours.

Does Japan ever use daylight saving time?

No. Japan observed DST from 1948 to 1951 under Allied occupation and abolished it permanently in 1951. No current legislation exists to reintroduce it.

What time zone abbreviation does Yokohama use?

JST (Japan Standard Time). During the occupation years, JST also stood for "Japan Summer Time," which causes confusion in old documents. Today, JST means Japan Standard Time, UTC+9, year-round.

How do I convert Yokohama time to my local time without a tool?

Add or subtract the UTC offset. Yokohama is UTC+9. If your city is UTC-5 (New York in winter), the difference is 14 hours. If your city is UTC+8 (Singapore), the difference is 1 hour. For cities with half-hour offsets (Mumbai, UTC+5:30), add the half hour.

Who should double-check their time conversion more than once a year?

Anyone scheduling a regular meeting with someone in a city that observes DST. If you talk to New York every Monday, the time that works in January will be one hour off in July. Set a calendar reminder to re-check on the second Sunday of March and the first Sunday of November.