日付計算機
日付間の日数や日付の加減算を計算します。
Difference
1 years, 8 months, 8 days
616 days • 88 weeks • 440 business days (Mon–Fri)
Total days
616
Weeks
88
Business days
440
How it works
Exact Gregorian calendar arithmetic, like calculator.net Date Calculator: difference in Y/M/D with totals, business days Mon–Fri, and add/subtract days/weeks/months/years handling leap years and month lengths.