Date Calculator

Easily calculate the time between two dates or find a future/past date by adding or subtracting time. Perfect for project deadlines, event planning, and more.

Choose Calculation Mode
Start Date
End Date

Your Results

Choose a mode, enter your dates, and click "Calculate".

Mastering Time with the Date Calculator

Whether you're a project manager tracking deadlines, a student counting down to vacation, or just curious about the time between two historical events, our Date Calculator is the perfect tool. It provides two powerful functions: calculating the duration between any two dates and finding a new date by adding or subtracting time.

How to Use the Date Calculator

Our calculator is designed for simplicity and power. Here’s how to use its two primary modes:

1. Finding the Duration Between Two Dates

This mode tells you exactly how much time has passed between a start date and an end date. The result is broken down into a comprehensive summary.

  1. Select the "Find Duration Between Dates" option.
  2. Enter the Start Date (month, day, and year).
  3. Enter the End Date.
  4. Click "Calculate" to see the duration in years, months, and days, as well as in total weeks and days.

2. Adding or Subtracting from a Date

This mode is perfect for finding a future or past date based on a specific timeframe. Need to know the date 90 days from today? This is the mode for you.

  1. Select the "Add or Subtract from a Date" option.
  2. Enter the Start Date you want to calculate from.
  3. Choose whether to Add or Subtract time.
  4. Fill in the amount of years, months, weeks, or days you want to adjust by. You can use any combination.
  5. Click "Calculate" to find the resulting date.

Practical Applications and Use Cases

A date calculator is an indispensable tool in many personal and professional scenarios: