About the Date Calculator
Use this date calculator to find the calendar time between two dates or to add and subtract years, months, weeks, and days from a date.
How Date Differences Work
The result shows calendar years, months, and days, plus the total number of days. The calculation counts the time from the start date up to, but not including, the end date.
Common Uses
Check project deadlines, contract periods, travel dates, birthdays, subscription dates, and future or past dates without counting days manually.