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Date / Duration Calculator

Calculate dates by adding or subtracting years, months, weeks, days, hours, minutes, and seconds. Also calculate the difference between two dates and business days.

Date Generator

Generated Dates

  • February 1st, 2027 5:20 PM
  • September 6th, 2026 2:56 PM
  • October 5th, 2026 3:24 PM
  • March 5th, 2027 1:17 AM
  • April 16th, 2027 10:51 PM


title: Date / Duration Calculator description: Calculate dates by adding or subtracting years, months, weeks, days, hours, minutes, and seconds. Also calculate the difference between two dates.

About This Tool

The Date / Duration Calculator is a versatile tool designed to help you easily manipulate and calculate dates and times. Whether you need to figure out a future deadline or calculate how much time has passed since a specific event, this tool provides the accuracy and flexibility you need.

Add/Subtract Date

Quickly add or subtract years, months, weeks, days, hours, minutes, and seconds from any given start date. Useful for calculating project deadlines, warranty expirations, or planning future events.

Date Difference

Calculate the exact duration between two dates. The tool breaks down the difference into years, months, weeks, and days.

Business Days

Need to exclude weekends? Our business days calculator computes the number of working days between two dates, making it perfect for professional scheduling and delivery estimates.