Date & Time Calculators
Calculators and tools for date and time operations.
Calendars are deceptively complicated — months have different lengths, leap years add an extra day, and everyday questions like how old someone is or how many days remain until a date require careful counting to get right. This category handles that complexity, turning calendar arithmetic most people would rather not do by hand into an instant, accurate answer.
Age Calculator
Calculate exact age in years, months, and days as of any date, along with total time lived (months, weeks, days, hours, minutes, seconds), the day of the week you were born, and a countdown to your next birthday.
Date Difference Calculator
Calculate the difference between two dates in years, months, weeks, and days, with optional inclusive counting and a business-days-only count that excludes weekends.