Date & Time Calculators
Date difference, age calculation, and time planning tools
10 free calculators in this category — no sign-up required.
Age Calculator
Calculate exact age in years, months, and days
Date Difference
Find the difference between two dates
Add/Subtract Date
Add or subtract days, months, or years from a date
Day of Week
Find the day of the week for any date
Countdown Timer
Countdown to any date in the future
Working Days
Calculate working days between two dates
Leap Year
Check if a year is a leap year
Hours Calculator
Calculate hours and minutes between two times
Pregnancy Due Date
Calculate estimated due date
Chronological Age
Calculate exact chronological age