Date Difference Calculator

Calculate the time difference between any two dates

Enter Two Dates
From Date
To Date

📖 How to Use the Date Difference Calculator

Step-by-Step Guide:
  1. Select Calendar Type: Choose Gregorian or Hijri calendar based on your dates
  2. Enter First Date (From): Select day, month, and year for the starting date
  3. Enter Second Date (To): Select day, month, and year for the ending date
  4. Click "Calculate": Results will appear instantly with comprehensive details
  5. Review Results: Get the time difference in years, months, and days, plus total days, weeks, months, hours, and minutes
💡 Important Tips:
  • Calculator supports both Gregorian and Hijri calendars
  • Calculate difference between any two dates, past or future
  • Results are accurate and account for leap years
  • Use for age calculation, project duration, or time periods

🎯 Common Use Cases

✅ Age Calculation

Calculate your exact age from birth date to today, or calculate anyone's age accurately

📅 Project Management

Calculate project duration from start to end date to know total days and weeks

💼 Contracts & Agreements

Calculate contract duration to know remaining or elapsed time periods

🎓 Education & Study

Calculate study periods, academic semesters, or vacation durations

💍 Special Occasions

Calculate days since marriage or any special occasion

🏥 Medical Cases

Calculate treatment duration, pregnancy periods, or appointment schedules

❓ Frequently Asked Questions

Yes, the calculator is highly accurate and accounts for leap years and differences between Hijri and Gregorian calendars. All calculations use tested and reliable algorithms.

Currently, you must use the same calendar type for both dates (either Hijri or Gregorian). If you have mixed dates, convert one using our calendar converter first.

"Time Difference" shows the result split into years, months, and days (e.g., 2 years 3 months 5 days), while "Total Days" converts everything to days only (e.g., 825 days).

Yes, you can calculate the difference between any two dates, past or future. The calculator works with all dates from 1900 to 2100.

The calculator uses PHP's DateTime system which automatically handles leap years. A leap year occurs every 4 years and contains 366 days instead of 365.