Date Difference Calculator
Calculate the exact number of days, weeks, months, and years between two dates.
Time Between Dates
This calculator finds the exact duration between any two dates.
What it calculates:
- Total days between the two dates
- Weeks and remaining days
- Approximate months (using average month = 30.44 days)
- Approximate years (using average year = 365.25 days)
How it works:
The difference in days is computed from the exact millisecond difference between the two dates:
Days = (End Date - Start Date) / (1000 × 60 × 60 × 24)
Common uses:
- Counting down to events (weddings, vacations, deadlines)
- Calculating age or duration of employment
- Tracking project timelines
- Finding warranty or contract expiration