Time Zone Converter
Convert any date and time between 400+ IANA time zones instantly.
Common Time Zone Conversions
Click any pair to load it into the converter above.
How to Convert Time Zones
Enter a date & time
Type or pick any date and time — or click 'Use Now' to start from the current moment.
Select your timezones
Choose the origin zone (From) and the destination zone (To). Search by city name or UTC offset.
Get the converted time
Click Convert to instantly see the exact date, time, and UTC offset for the destination zone.
About IANA Time Zones & Daylight Saving
An IANA timezone (like America/New_York or Asia/Kolkata) is a named region in the official timezone database that encodes all historical DST rules. Using an IANA name instead of a raw UTC offset like UTC-5 means your conversion stays correct even when clocks change in spring or fall.
Daylight Saving Time shifts clocks forward by one hour in spring and back in fall, affecting most of the US, Canada, and Europe — but not India, Japan, China, or most of Africa. When you select a date during a DST period, this tool adjusts the offset automatically.
All conversion logic runs in your browser using the built-in Intl.DateTimeFormat API — no data is sent to any server.