How do I convert a time between time zones?

Type any city name or IANA timezone identifier (e.g. 'Europe/Berlin', 'America/New_York') to add it. Set a reference time using the calendar picker, or keep the live clock on to see current times in all zones simultaneously.

Does the converter handle Daylight Saving Time?

Yes. All conversions use the browser's Intl.DateTimeFormat API, which applies DST rules automatically for every zone. A DST badge appears next to any zone currently observing summer time at the selected moment.

What is the business hours overlap bar?

The overlap bar maps all 24 UTC hours as columns. Green means all your added zones are simultaneously within business hours (9am–5pm local). Yellow means partial overlap. Hover a column to see the exact UTC hour and which zones are in business hours.

Can I share a specific time zone view?

Yes. The page URL updates as you add zones and set the reference time. Copy the URL from the address bar or use the Share button to send colleagues a link that restores your exact configuration.

Free Time Zone Converter — Convert Times Between Cities & Zones

What Is a Time Zone Converter?

A time zone converter shows the same moment in time expressed in multiple time zones simultaneously — essential for scheduling meetings across cities, coordinating remote teams, and planning international calls. This tool is DST-aware (Daylight Saving Time is applied automatically), shows UTC offsets for each zone, and lets you pin a specific date and time to calculate future conversions.

How to Convert Times Between Time Zones

Type any city name or IANA timezone identifier (e.g. Europe/Berlin, America/New_York, Asia/Tokyo) in the search box and press Enter to add it.
Add as many zones as you need — each appears as its own card showing the local time.
Use the calendar/clock picker to set a specific reference time, or keep the live clock on to see current times in all zones.
Copy the URL or click Share to send a link that restores your exact configuration for colleagues.

Key Features

DST-aware: All conversions use the browser's Intl.DateTimeFormat API, which applies Daylight Saving Time rules automatically for every zone.
Live clock: Real-time updates show the current moment in every added zone without touching the reference time picker.
Business hours overlap: A visual bar maps all 24 UTC hours. Green columns = all zones in business hours simultaneously; yellow = partial overlap.
Shareable links: The URL updates as you add zones and set the reference time. Share it to let anyone restore the exact same view.
IANA timezone support: Full database of IANA time zone identifiers — any city, region, or UTC offset is supported.

Common Use Cases

Scheduling cross-timezone meetings: Find the business hours overlap window for team members in New York, London, and Singapore at a glance.
Remote team coordination: Pin a sprint planning meeting time and share the link so every team member sees it in their local time.
Travel planning: Calculate arrival times and flight durations across time zones accurately, including DST transitions.
Live event timing: Convert a webinar, game launch, or live stream time to local time for a global audience.

Frequently Asked Questions

How do I convert a time between time zones?: Type any city name or IANA timezone identifier (e.g. 'Europe/Berlin', 'America/New_York') to add it. Set a reference time using the calendar picker, or keep the live clock on to see current times in all zones simultaneously.
Does the converter handle Daylight Saving Time?: Yes. All conversions use the browser's Intl.DateTimeFormat API, which applies DST rules automatically for every zone. A DST badge appears next to any zone currently observing summer time at the selected moment.
What is the business hours overlap bar?: The overlap bar maps all 24 UTC hours as columns. Green means all your added zones are simultaneously within business hours (9am–5pm local). Yellow means partial overlap. Hover a column to see the exact UTC hour and which zones are in business hours.
Can I share a specific time zone view?: Yes. The page URL updates as you add zones and set the reference time. Copy the URL from the address bar or use the Share button to send colleagues a link that restores your exact configuration.

Privacy & Security

All time zone calculations run in your browser using the Intl API. No data is sent to any server.