Calculators/Date Difference
Date Difference
Calculate days, weeks, and business days between any two dates.
Quick shortcuts
Free Date Difference Calculator
Calculate the exact number of days between any two dates for project planning, contract deadlines, travel planning, age verification, countdown to events, or calculating durations. Enter a start and end date to see the difference in days, weeks, months, and years.
The business days calculation excludes Saturdays and Sundays to give you a working-day count, useful for estimating project timelines and delivery windows. Quick shortcuts for common calculations — days until New Year, days until Christmas, 90 days from today — make frequent lookups instant.