Date & Time Tools
Free online calculators and converters for all your date and time needs. Calculate ages, convert time zones, find dates, and much more.
Date Calculators
Calculate date differences, add or subtract days, and find specific dates
Days Between Dates
Calculate the number of days between two dates
Age Calculator
Calculate your exact age in years, months, and days
Add/Subtract Days
Add or subtract days from any date
Date Information
Get detailed information about any date
Day of Week Finder
Find out which day of the week any date falls on
Week Number Calculator
Get the ISO week number for any date
Leap Year Checker
Check if a year is a leap year
Business Tools
Tools for business and work scheduling
Business Days Calculator
Calculate business days between two dates (Mon-Fri)
Add Business Days
Add business days to a date (excluding weekends)
Date Range Info
Get comprehensive information about a date range
Explore More Features
Discover festivals, holidays, and special dates from around the world.