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Date Difference Calculator
Calculate the duration between two dates as total days, weeks and a years/months/days breakdown, and see how many weekdays versus weekend days fall in the range. Optionally include the end day in the count.
30 days
0 months, 30 days
4
Weeks
21
Weekdays
9
Weekend days
🔒 This tool runs entirely in your browser. Your data is never uploaded.
Frequently asked questions
What does it count?＋
The number of days and weeks between two dates, and separately the weekdays and weekend days.
Does it include both end dates?＋
It can count inclusively or exclusively depending on whether you need the start and end day counted — check the option.
Is my data private?＋
Yes — the calculation runs in your browser.