Scheduling a call across continents is tricky because offsets change with daylight saving time on different dates in different countries. This converter uses the IANA time-zone database (the same one phones and computers use) so it gets those rules right.
How to use the Time Zone Converter
- Date and time
- From time zone
- To time zone
Everything runs in your browser, so results appear instantly and nothing you type is sent to a server.
How it works
Your date and time are interpreted in the “from” zone, converted to a single instant in UTC, then displayed in the “to” zone.
Formula
local time B = local time A − offset A + offset BWorked example
Inputs — Date and time: 2026-07-01T09:00; From time zone: Karachi (PKT); To time zone: New York (ET).
Results — Converted time = Wed, 1 Jul 2026, 00:00; Same moment in UTC = Wed, 1 Jul 2026, 04:00 UTC; Time difference = −9 h; UTC offsets = UTC+05:00 → UTC−04:00.
Frequently asked questions
Does it handle daylight saving time?
Yes, using the official rules for each zone and date.
What is UTC?
Coordinated Universal Time, the reference for all time zones.
Why is India UTC+5:30?
Some zones use half- or quarter-hour offsets; Nepal is UTC+5:45.
What formula does the Time Zone Converter use?
local time B = local time A − offset A + offset B.