📅
Date Calculator
Calculate days between dates, add or subtract time periods, and count business days. Free date calculator with multiple calculation modes.
💡Did You Know?
- • A year has 365.25 days (accounting for leap years)
- • The Gregorian calendar was introduced in 1582
- • There are exactly 52 weeks and 1 day in a regular year
- • Leap years occur every 4 years (with exceptions)
📢
Advertisement
728x90 - Leaderboard
📢
Advertisement
300x250 - Medium Rectangle
🎯 You Might Also Like
✨ Key Features
📊
Date Difference
Calculate exact time between dates
➕
Add/Subtract
Find future or past dates
💼
Business Days
Count working days only
⚡
Quick Actions
Today buttons & copy results
How to Use the Date Calculator
Our date calculator offers three modes: Date Difference, Add/Subtract, and Business Days. Choose your mode and enter dates to see instant results.
Date Difference Calculator
Enter start and end dates to see the exact difference in multiple formats: days, weeks, months, years. Perfect for calculating age, project duration, or time until events.
Add or Subtract Dates
Start with any base date, then add or subtract years, months, and days. Great for calculating due dates, expiration dates, or planning future events.