Date Calculator

Add or subtract days, weeks, months, and years from any date, or find the difference between two dates.

Add / Subtract from a Date


Difference Between Two Dates

Date Math for Students

Whether you're planning a study schedule, calculating project deadlines, or figuring out how many days until an exam, this date calculator makes it easy.

Common Use Cases

  • Project planning: Calculate deadlines and milestones by adding weeks to a start date
  • Study schedules: Find how many days remain until a test or exam
  • Age calculation: Determine the exact difference between two dates
  • Historical dates: Compute time elapsed between historical events