Get the exact duration between two dates in years, months, weeks, and days. Useful for project timelines and countdowns. All calculation runs in your browser.
無料 · 制限なし · ブラウザで処理
使い方
1Select the start date.
2Select the end date.
3View the difference (days, weeks, months, years).
よくある質問
Does it account for leap years?
Yes. The calculator uses proper date logic including leap years.
Can I get business days (weekdays only)?
Yes. The tool shows business days — weekdays between the two dates, excluding Saturdays and Sundays.
Is the end date included in the count?
Typically the span is between the two dates; you can add one day if you need the end date included.