Days between dates calculator
Count the days and weeks between two calendar dates, with an option to include the end date.
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Date and time-zone tools
Compare calendar dates, convert a UTC instant, find a shared meeting window or interpret Unix timestamps.
Decide whether you are comparing dates or instants. A calendar-day difference counts the dates on the calendar. A time-zone conversion describes the same instant in different places, where the local date may change. Choosing the date as well as the hour matters when daylight saving changes an offset.
Use the overlap finder when the question is whether two working schedules intersect. Its result covers one explicitly selected UTC day and respects the local weekday settings you choose. It does not create an invitation or inspect anyone’s calendar. Confirm the selected time with participants before treating it as an agreed meeting.
World clock & time zone converter
Convert a specific UTC date and time to major cities with daylight saving handled by your browser.
Use tool ↗Meeting overlap finder for two time zones
Find shared working-hour windows for two cities on a chosen UTC date, including daylight-saving offsets.
Use tool ↗Unix timestamp converter
Convert Unix seconds or milliseconds to UTC, or turn a UTC date and time into a timestamp.
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