Timezone Converter – Free Online World Time Converter

Convert times across all world timezones. Shows multiple zones simultaneously. Source and target timezone swap.

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Features

🌍

All World Timezones

Convert between all IANA timezones including UTC, US, Europe, Asia, Australia, and more.

📊

Multiple Zones

Display up to 6 target timezones simultaneously with the source timezone.

🔄

Swap Timezones

One-click swap between source and target timezone to reverse the conversion.

🔒

Privacy First

All conversion uses Intl.DateTimeFormat locally. No network requests.

📅

Date & Time Picker

Select both date and time for accurate conversion across day boundaries.

⏰

Current Time

One-click button to set the input to the current time in your selected timezone.

How to Use

1

Select Source Timezone

Choose the timezone of the time you want to convert.

2

Enter Date & Time

Set the specific date and time, or click Now to use the current time.

3

Select Target Timezones

Choose up to 6 target timezones to see the converted times.

4

View Results

All target timezone conversions appear instantly with UTC offsets shown.

Frequently Asked Questions

How many timezones are supported?
All IANA timezones are supported, including approximately 400+ timezones like 'America/New_York', 'Asia/Shanghai', 'Europe/London', 'Australia/Sydney', and more.
Does it handle daylight saving time?
Yes. The conversion uses the browser's native Intl.DateTimeFormat API which correctly accounts for DST for any given date.
What is UTC offset?
The UTC offset shows how many hours and minutes a timezone is ahead or behind UTC. For example, UTC+8 means 8 hours ahead of UTC.
Is my data sent to a server?
No. All timezone conversions are done locally using JavaScript's Intl.DateTimeFormat API. Your selected times are never transmitted.

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