FREE ONLINE CALCULATORS

Make date and time calculations simple.

Calculate date differences, business days, age, time durations, and upcoming events with easy-to-use tools.

Date Calculators

Calculate date differences and work with calendar dates.

Find the number of days between two calendar dates.

Count weekdays between two dates.

Calculate full weeks and remaining days.

Find complete calendar months and remaining days.

Calculate age in years, months, and days.

Find which day of the week a date falls on.

Calculate durations between different times.

Calculate the duration between two times.

Find out how many days remain until upcoming events.

Count down to the start of summer.

Count down to the start of spring.

See how many days remain until Halloween.

Count down to Thanksgiving.

Count down to Western Gregorian Easter.