Daily Life
Date Difference Calculator
Pick a start date and an end date to see the exact difference in years, months and days, plus the total number of days and weeks between them.
Tool workspace
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Frequently asked questions
Which date should be first?
The start date must be on or before the end date — swap them if you get a validation error.
Does this count the start or end day?
The difference is calculated as whole calendar days between midnight of each date, matching how most calendar apps count date ranges.