Calculate the exact number of days, weeks, months, and years between any two dates. Shows working days, full breakdown, and bar chart. Free, instant, no registration.
A date difference calculator finds the exact span of time between two calendar dates, expressed in days, weeks, months, and years. It can also isolate working days by excluding weekends, making it useful for project planning, deadline tracking, or calculating durations for contracts and events.
0
Total Days
0
Total Weeks
0
Total Months
1
Working Days
0
Total Years
Last updated:
Date Difference
Calculating the difference between two dates is more complex than it appears at first glance. Different months have different numbers of days (28–31), and February in a leap year has 29 days. Our calculator gives a precise breakdown: total days, weeks, months, years, working days, and a component breakdown (X years, Y months, Z days).
Working days are calculated by counting only Monday through Friday, excluding Saturday and Sunday. For periods up to 2 years, days are counted individually; for longer periods, an approximation is used (5/7 of all days).
Use Cases
Date differences are used in many practical situations. In contracts and rentals — how many days remain until expiry. In projects — how many working days do we have. In pregnancy — how many weeks have passed. In financial calculations — interest periods. In legal deadlines — when does a statute of limitations expire.
In HR and accounting, calculating working days is especially important for computing vacation, sick leave, and severance payments. Our calculator delivers the result in seconds.
Working Days
Working days are Monday through Friday, excluding public holidays. Our calculator only excludes Saturday and Sunday — official holidays are not automatically included, as they vary by country. If you need a more precise calculation including public holidays, we recommend subtracting the number of public holidays in your country from the result.
Practical Examples
Contract deadlines
Calculate how many days or months remain until the end of a rental or employment contract.
Submission deadlines
Check whether you have enough working days before a document submission deadline.
Project planning
Find out exactly how many working days you have to complete a task.
Warranties and insurance
Calculate when a warranty expires in days from the date of purchase.
Travel planning
Know exactly how many days until your trip to plan preparation, bookings, and time off.
Age and milestone tracking
Calculate the exact number of days between life events — birthdays, anniversaries, or achievement dates.
Working days are counted as Monday through Friday. Saturdays and Sundays are excluded. Public holidays are not automatically excluded, as they vary by country. Subtract the number of public holidays in your country for a more accurate result.
Total months is the approximate count of full months elapsed (total days ÷ 30.44). The months component in the breakdown shows the remaining months after subtracting complete years — part of the 'X years, Y months, Z days' breakdown.
Yes — enter any two dates, past or future. The calculator will show the difference as long as the end date is after the start date. This is useful for project planning, deadline tracking, and retirement countdowns.
Total days is the exact count of days between the two dates. The breakdown (years, months, days) uses calendar months, which have different lengths (28–31 days). This means the breakdown may not multiply out exactly to total days — both results are correct.
For periods up to 2 years, each day is counted individually. For longer periods, an approximation of 5/7 of total days is used, which is accurate to within 1–2% of the exact count.