Date Calculator
Free online date calculation tools. Calculate date differences, workdays, age, and more with accuracy and ease.
Date Difference
Calculate days, weeks, months, and years between two dates
Add/Subtract
Add or subtract days, weeks, months, or years from a date
Workdays
Calculate workdays between two dates, with holiday exclusion support
Age Calculator
Calculate exact age with zodiac sign and birthday countdown
Countdown
Countdown to target dates with real-time updates
Week Number
Find the week number of a date or date range of a week
Timezone
Convert time between different timezones
Lunar Calendar
Convert between solar and lunar calendar dates
Today's Date
February 23, 2026
Monday
Why Choose Us?
Professional, accurate, and convenient date calculation services
Accurate & Reliable
Using professional date libraries to ensure accurate results
Fast & Convenient
Instant calculations with clear results
Completely Free
All features are free with no hidden charges