Enter the source time
Choose the date, time, and source time zone, such as America/New_York for an appointment in Eastern Time.
World time zones
Time zone converter
Convert dates and times between world time zones, accounting for date changes and daylight saving time.
Convert between two time zones
Converted time
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Source time—
Source UTC offset—
Destination UTC offset—
ISO format—
Learn more
Time zone conversion made simple
When working, studying, or scheduling across countries, a time difference can also mean a different date. This tool uses the IANA time zone data available in your browser to convert times on your device.
Choose the destination time zone
Select a destination such as America/New_York, Asia/Tokyo, or Europe/London to see the corresponding local time.
Automatic daylight saving adjustments
Your browser applies regional daylight saving time rules using the time zone data available on your system.
Frequently asked questions
Quick answers to help you get accurate results.
Which time zone should I choose for the United States?
Choose the zone for your city, such as America/New_York, America/Chicago, America/Denver, or America/Los_Angeles. The United States spans multiple time zones.
Why does US time change during the year?
Many US regions observe daylight saving time, so their UTC offsets change during the year.
Are my dates and times sent to a server?
No. Conversion happens in your browser using JavaScript and Intl.DateTimeFormat.