Date Calculator
Calculate the difference between dates or add/subtract days, weeks, months, or years from a date.
Difference between dates
Enter dates to calculate
What is a date calculator?
A date calculator finds the difference between two dates or calculates a new date by adding or subtracting time periods.
Practical uses
Useful for calculating project deadlines, due dates, pregnancy periods, work seniority, or planning future events.
Tips
Remember months have different numbers of days. When adding months, if the resulting day doesn't exist (February 31), it adjusts to the last day of the month.