Date and Time Calculator

Calculate the exact difference between two dates and times in years, months, days, hours, minutes, and seconds. Perfect for measuring durations, planning meetings, calculating work hours, and finding time differences across time zones. A comprehensive tool for precise time calculations.

start_datetime

end_datetime

How to Calculate Date and Time?

1. Select the start date and time
2. Select the end date and time
3. Click the "Calculate" button
4. The results will show:
- Duration in years, months, days
- Duration in hours, minutes, seconds
- Total days, hours, minutes, and seconds
- Which days of the week the start and end dates fall on

Note: 24-hour format is used. Dates must be between years 1900-2100.

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