Date Calculator

Calculate the gap between two dates or move forward and backward from a starting date when planning schedules, contracts, and deadlines.

Difference Between Two Dates
Days
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Weeks
—
Months
—
Years
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Add or Subtract Time
Result
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Why people use this tool

Date Calculator

Calculate the gap between two dates or move forward and backward from a starting date when planning schedules, contracts, and deadlines.

  • Count days between milestones, trips, or billing periods.
  • Add or subtract days from a date without mental calendar math.
  • Check delivery, renewal, and deadline timing before you commit.
Typical workflow Choose the two dates or pick a starting point plus a number of days to get the result immediately.
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Date Calculator interface preview
Live interface preview for Date Calculator. This screenshot is also the landing image Google can associate with the tool page.
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v1.0