Time Zone Converter
Convert time between world time zones instantly. Enter a time in one zone and see the exact local time in another, with dates handled automatically.
About this tool
Scheduling across time zones is one of the most common sources of missed meetings. A 3 PM call in New York is 8 PM in London and midnight in Karachi, and daylight saving changes make mental math risky. Guessing the difference is how people end up joining an hour early or an hour late.
Our free time zone converter removes the guesswork. Enter a time in one city zone and instantly see what time it is in another, with the correct date attached. It accounts for daylight saving automatically because it uses your browser's built-in time zone database.
How to use
Type the time in 24-hour format, for example 14:30 for half past two in the afternoon. Choose the source time zone and the target time zone from the dropdowns, then press Convert Time. The tool shows the converted time together with the weekday and date, which matters when the conversion crosses midnight.
The conversion is based on today's date in the source zone, so daylight saving rules for the current date are applied correctly.
The math behind it
Behind the scenes, the tool turns your wall-clock time into an exact UTC instant. It takes today's date in the source zone, combines it with your time, and measures that zone's UTC offset for that date using the international time zone database. Then it formats that instant in the target zone.
Using the database instead of a fixed offset table is what makes daylight saving work: New York is UTC-5 in winter and UTC-4 in summer, and the tool picks the right one for the date.