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Date Difference Calculator
Count the days, weeks and months between two dates.
About this calculator
Choose a start and an end date to see the difference in days, weeks, hours and in years, months and days. It is useful for notice periods, project timelines, loan dates and countdowns.
Results are estimates for information only. Please confirm important decisions with a qualified professional.
Frequently asked questions
Is the end date counted?
The result is the difference between the dates, so the start date is not counted as an extra day.
What if my dates are in the wrong order?
The calculator swaps them automatically.