Durations and dates worked out exactly — hours between two times, and age down to the day.
Calculate work hours from clock-in and clock-out times, including breaks and decimal hours.
Calculate exact age in years, months, and days from a date of birth.
Add up a weekly time card, subtract breaks, split overtime, and estimate payroll hours.
Find the elapsed duration between two clock times, including overnight spans.
Convert a dog’s age to human years using a breed-size-aware model, not the old “multiply by seven” myth.
Add or subtract days, weeks, months, and years from any date, count the days between two dates, or count business days only.
Count working days between two dates, or find the date N business days from today.
Calculate the age difference between two birthdates in years, months, and days, plus the total days, who is older, and when one was twice the other’s age.