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Calculating the exact time between two dates involves more than simple subtraction — leap years, varying month lengths, and daylight saving time transitions all affect the result. Our date difference calculator gives you the precise interval in years/months/days, total days, weeks, hours, and minutes, with optional business-days-only mode.

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Date & Time

حول Date Difference Calculator

Calculating the exact time between two dates involves more than simple subtraction — leap years, varying month lengths, and daylight saving time transitions all affect the result. Our date difference calculator gives you the precise interval in years/months/days, total days, weeks, hours, and minutes, with optional business-days-only mode.

كيفية الاستخدام

  1. Enter a start date and end date.
  2. See the difference in years, months, and days (with day-of-week for each date).
  3. Switch to business days mode to exclude weekends.
  4. Add custom holidays to exclude from the business day count.

الصيغة والمنهجية

Total days = (End date − Start date) in days. Years/months/days: iterative subtraction accounting for varying month lengths. Business days = total days − weekend days − holidays. Leap year rule: divisible by 4, except century years unless also divisible by 400.

حالات الاستخدام الشائعة

  • Project planning: days remaining until a deadline
  • Age calculations: exact age in years, months, and days
  • Contract management: days until expiration or renewal
  • HR: days since hire date for vesting or probation periods
  • Legal: statute of limitations calculations

الأسئلة الشائعة

Leap years add one day (Feb 29) to the calendar every 4 years, with exceptions: century years (1900, 2100) are not leap years unless also divisible by 400 (so 2000 was a leap year but 1900 was not). The calculator correctly accounts for all leap year transitions between any two dates.
Calendar days count every day including weekends and holidays. Business days typically exclude Saturdays, Sundays, and public holidays. Legal contracts often specify "business days" — a 30-business-day period is actually ~6 calendar weeks. The calculator lets you specify which holidays to exclude.

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