Free Time Zone Converter

A time zone converter tells you what time it is in one place when it’s a given time somewhere else. This one works from a specific date, so it applies the daylight saving rules in force on that day. It’s built for checking when a scheduled post, live stream or launch happens for an audience in another region.

1. Choose the date and time in Local date and time. 2. Type the starting zone in From time zone, such as Asia/Shanghai. 3. Type the target zone in To time zone, such as America/New_York. 4. Click Create result and read the converted time and UTC.

It’s the standard name computers and phones use for a time zone, written as Region/City, such as Europe/Paris. Each name carries that area’s history of offsets and daylight saving rules, so it gives more reliable results than a fixed offset like UTC+1.

Abbreviations are ambiguous and don’t follow daylight saving. PST isn’t a valid zone name, and EST, if your browser accepts it, means a fixed UTC−5 all year, which is wrong for New York in summer. Use America/Los_Angeles or America/New_York instead.

It looks up the offset for the exact date you choose in both zones, using your browser’s time zone data. A post on July 1 and one on December 1 can therefore convert to different local times, even between the same two cities.

On the day clocks fall back, an hour repeats, so a time like 1:30 a.m. exists twice and both matches are listed. On the day clocks spring forward, an hour is skipped, and the tool asks you to pick another time because that clock time never happens.

UTC is the single reference time that doesn’t change with the seasons. Many scheduling tools, APIs and spreadsheets store times in UTC, so copying the UTC value avoids mistakes when teammates work in different zones.

Usually 5 hours, with London ahead. For a few weeks each year it’s 4 hours, because the US and Europe change their clocks on different dates. In 2026 that happens from March 8 to March 29 and from October 25 to November 1.

No. The conversion runs in your browser with its built-in time zone data, and your dates and zones aren’t sent anywhere or saved. Refreshing the page resets the fields to their default values.

Yes. It’s free with no signup or account, and you can convert as many times as you need. Run one conversion per audience region when you plan a multi-country launch.