Timezone Converter
Converted time
What is Timezone Converter
A timezone converter translates a date and time from one timezone to another using the IANA timezone database. This tool uses the native browser Intl.DateTimeFormat API, requiring no external libraries and supporting hundreds of time zones worldwide.
How to use
- Select the origin timezone from the first dropdown (search by city or timezone name).
- Select the destination timezone from the second dropdown.
- Enter the date and time you want to convert.
- The result shows the converted time and any day offset (+1 day, −1 day).
When to use it
Got a meeting set for 3:00 PM in New York (EST) and teammates spread across the globe? Drop it in and everyone reads it in their own zone: London sees 8:00 PM GMT the same day, while Tokyo lands on 5:00 AM the next morning. No more back-and-forth to work out who joins when.
Frequently asked questions
How accurate is this converter?
It uses the browser's built-in Intl.DateTimeFormat API, which follows the IANA timezone database and accounts for daylight saving time correctly.
Does it handle daylight saving time?
Yes. The IANA timezone database includes DST rules for all regions, so the conversion is always accurate for the selected date.
What does "+1 day" or "−1 day" mean?
It means the converted time falls on the next or previous calendar day compared to the origin time.
Can I share this tool with my inputs pre-filled?
Yes. The URL updates automatically as you type. Copy it from the address bar or use the Share button — anyone who opens the link will see your exact inputs ready to go.
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