Date Calculator
Calculate the difference between dates, add or subtract days from any date.
Calculate Days Between Two Dates
Difference
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Years
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Months
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Weeks
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Days
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Hours
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Minutes
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Add or Subtract Days from a Date
Result Date
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Calculate Business Days
Business Days
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Total Days
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Weekends
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Business Days
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Date Calculation Tips
Leap Years
Leap years occur every 4 years, adding an extra day (Feb 29). Years divisible by 100 are not leap years unless also divisible by 400.
Business Days
Business days typically exclude weekends (Saturday & Sunday). Some calculations may also exclude public holidays.
Month Lengths
Months have 28-31 days. Feb has 28 (or 29 in leap years). Apr, Jun, Sep, Nov have 30. Others have 31.