Time Zone Converter online

What Time Zone Converter does

Time zone conversion shows what one moment is called in another part of the world. Time Zone Converter uses the time zone database built into your browser (the IANA tz database), which stores each zone's offset from UTC and its daylight saving time rules.

You pick a date and time in one zone, and the tool calculates the matching local time in the other zone for that specific date, so the result is correct in both winter and summer. It is useful for meetings, live streams, flights and calls with people in other regions.

How to use Time Zone Converter

1. Pick a date and time.
2. Choose the time zones to convert from and to.
3. Read the converted time, with daylight saving time applied.

When to use Time Zone Converter

• Schedule a video call between a team in Los Angeles and a client in New York without counting hours by hand.
• Tell followers in Europe and Asia when a live stream that starts at 6 PM Eastern Time begins for them.
• Check the local arrival time of a flight that leaves in one time zone and lands in another.
• Plan a webinar in the weeks when Europe and North America have not yet both changed their clocks.

Settings explained

From

The time zone of the time you enter. Zones are listed by city and name, for example New York – Eastern Time. Pages for a fixed pair, such as PST to EST, preselect it, but you can change it.

Date and time

The date and local time in the From zone. It starts at the current time. The date matters, because daylight saving time can change the difference between two zones.

To

The time zone to convert into. The result shows the weekday, date, time and zone name, and the line below lists both times with their offsets from UTC.

Swap

Exchanges the two zones and moves the converted time into the input field, so you can look at the same moment from the other side.

Now

Resets the input to the current date and time in the From zone. Use it to see what time it is right now in the other zone.

Popular time zones

Why use FansBond Time Zone Converter

Most online converters upload your files to their servers. FansBond Time Zone Converter does the work inside your browser instead, using WebAssembly and modern browser APIs. Your files stay on your device, which is safer for private photos, contracts and unreleased work, and it is often faster because nothing has to upload or download.

There are no queues, no watermarks and no account. Once the page has loaded, the tool keeps working even on a slow connection.

Tips for the best result

• The United States and Europe change clocks on different dates. For two to three weeks in March and a week from late October, the usual gap is one hour smaller.
• Most of Arizona does not use daylight saving time, so its difference from other US zones changes during the year. Choose Phoenix rather than Denver for Arizona.
• When you share a meeting time, include the date and the zone abbreviation or UTC offset shown in the result, so nobody has to guess.
• Some zones are offset by half an hour, such as India at UTC+5:30. Check the minutes in the result, not only the hour.

How Time Zone Converter works in your browser

Time zones come from the IANA time zone database that is built into your browser and operating system. It knows the daylight saving rules for every region, including past and future changes.

When you pick a date, the tool calculates the UTC offset of both zones for that exact day. This is why the result is correct even in the weeks when one region has switched to daylight saving time and the other has not.

Privacy and security

Most online converters upload your files to a server, process them there and keep a copy for some time. Time Zone Converter works differently: the code is downloaded to your browser once, and your files are read and written only on your device.

You can check this yourself: after the page has loaded, turn off your internet connection and the tool still works. This makes it safe for contracts, IDs, medical records, private photos and unreleased work.