Date Difference Calculator
Calculate duration between two dates in years, months, weeks, and days with weekday/weekend breakdown.
Date Difference Calculator
Select Dates
Calculation Notes
- Basic: Days between start and end date
- Include End: Adds target day to count
- Weekdays: Business days vs weekends
– days
Duration Between Dates
0 yrs
Years
0 mos
Months
0 wks
Weeks
0 days
Remaining
–
Start Day
–
End Day
–
Weekdays (Mon-Fri)
–
Weekends (Sat-Sun)
What is a Date Difference Calculator?
A Date Difference Calculator computes the duration between two dates in various units. Beyond simple day counts, it breaks down the period into years, months, weeks, and separates weekdays from weekends.
Features
- Detailed Breakdown – Total days split into years/months/weeks/days
- Weekday/Weekend Split – Separate count of business days and weekends
- Quick Settings – +1 week, +1 month, +1 year buttons for fast input
- Date Swap – Instantly swap start and end dates
- Include End Date – Option to count the target day for countdowns
Frequently Asked Questions
When should I use the “Include end date” option?
Use it when counting down to an event where the target day should be included. Example: “How many days until my exam?” – include the exam day.
How are weekdays calculated?
Monday through Friday are counted as weekdays, Saturday and Sunday as weekends. Public holidays are not factored in.