9 tools
Add or Subtract Days Calculator
Add or subtract any number of days from a date to find the resulting date and weekday. Free date add/subtract days calculator.
Age Calculator
Calculate exact age in years, months and days between a birth date and any date.
Business Days Calculator
Count the working days (Monday to Friday) between two dates, excluding weekends. Free business days and weekday counter.
Date Difference Calculator
Calculate the exact difference between two dates in years, months, days, weeks and total days. Free online date duration calculator.
Days Until Date Calculator
Count the number of days from today until any future date, plus the number of weeks remaining. Free countdown to a date calculator.
Time Duration Calculator
Calculate the duration between two times in hours and minutes, including overnight spans. Free time difference calculator.
Unix Timestamp Converter
Convert Unix timestamps (epoch seconds) to a human-readable UTC and local date, and convert any date back to a Unix timestamp.
Week Number Calculator
Find the ISO 8601 week number for any date, with the ISO week year and weekday. Free what-week-is-it calculator.
Work Hours Calculator
Calculate hours worked from clock-in and clock-out times minus breaks, in decimal hours and hours:minutes. Free timesheet hours calculator.
