Date Calculator
Add or subtract days, weeks, months, or years from a date, and calculate the difference between dates.
Add or Subtract Time from a Date
Calculate Difference Between Dates
How to Use
Add or Subtract Time
- Enter a starting date in the Base Date field
- Choose whether to Add or Subtract time
- Enter the amount of time in the Value field
- Select the time unit (days, weeks, months, or years)
- Results will update automatically as you change values
Calculate Date Difference
- Enter the Start Date
- Enter the End Date
- Results will update automatically showing the difference
- The result shows the total days, as well as the breakdown in years, months, and days
- Use the swap button to quickly reverse the order of dates
About Date Calculator
Features
- Add or subtract time intervals from a date
- Calculate the difference between two dates
- Get results in days, weeks, months, and years
- See the breakdown of time intervals
- Calculate weekdays (Monday to Friday) between dates
- Easy date swapping for difference calculations
Common Use Cases
- Planning project deadlines and milestones
- Calculating age from birthdate
- Determining contract or subscription durations
- Planning events and appointments
- Figuring out workdays between dates
- Calculating service intervals and maintenance schedules
- Determining time spans for billing purposes