Free time and date calculators for age, date differences, durations, and more.

Age Calculator

Calculate your exact age in years, months, and days.

Birthday Calculator

Calculate exact age on a chosen birthday or comparison date.

Countdown Calculator

Estimate the remaining calendar days between a start date and a target date.

Days Between Dates Calculator

Count the number of calendar days between two dates quickly and clearly.

Shift Hours Calculator

Calculate elapsed shift length between a start time and an end time, including overnight work.

Work Hours Calculator

Calculate hours worked between shift start and shift end times, including overnight work.

Age in Days Calculator

Calculate exact age in total days between a birth date and a target date.

Age in Weeks Calculator

Calculate exact age in total weeks between a birth date and a target date.

Anniversary Calculator

Calculate completed years between a start date and an anniversary or milestone date.

Appointment Duration Calculator

Calculate appointment duration between two clock times in hours and minutes.

Call Duration Calculator

Calculate call duration between two clock times in hours and minutes.

Class Duration Calculator

Calculate class duration between two clock times in hours and minutes.

Commute Duration Calculator

Calculate commute duration between two clock times in hours and minutes.

Cooking Session Duration Calculator

Calculate cooking session duration between two clock times in hours and minutes.

Date Difference Calculator

Calculate the number of days, weeks, or months between two dates.

Delivery Route Duration Calculator

Calculate delivery route duration between two clock times in hours and minutes.

Drive Duration Calculator

Calculate drive duration between two clock times in hours and minutes.

Event Duration Calculator

Calculate event duration between two clock times in hours and minutes.

Flight Duration Calculator

Calculate flight duration between two clock times in hours and minutes.

Focus Session Duration Calculator

Calculate focus session duration between two clock times in hours and minutes.

Hotel Stay Duration Calculator

Calculate hotel stay duration between two clock times in hours and minutes.

Hours Calculator

Calculate the exact number of hours, minutes, and seconds between two times.

Lecture Duration Calculator

Calculate lecture duration between two clock times in hours and minutes.

Lunch Break Duration Calculator

Calculate lunch break duration between two clock times in hours and minutes.

Meeting Duration Calculator

Calculate meeting duration between two clock times in hours and minutes.

Nap Duration Calculator

Calculate nap duration between two clock times in hours and minutes.

Night Patrol Duration Calculator

Calculate night patrol duration between two clock times in hours and minutes.

Night Shift Duration Calculator

Calculate night shift duration between two clock times in hours and minutes.

On Call Shift Duration Calculator

Calculate on call shift duration between two clock times in hours and minutes.

Overnight Care Duration Calculator

Calculate overnight care duration between two clock times in hours and minutes.

Overtime Duration Calculator

Calculate overtime duration between two clock times in hours and minutes.

Parking Duration Calculator

Calculate parking duration between two clock times in hours and minutes.

Pomodoro Duration Calculator

Calculate pomodoro duration between two clock times in hours and minutes.

Rest Break Duration Calculator

Calculate rest break duration between two clock times in hours and minutes.

Road Trip Duration Calculator

Calculate road trip duration between two clock times in hours and minutes.

Shift Break Duration Calculator

Calculate shift break duration between two clock times in hours and minutes.

Sleep Duration Calculator

Calculate sleep duration between two clock times in hours and minutes.

Streaming Session Duration Calculator

Calculate streaming session duration between two clock times in hours and minutes.

Study Session Duration Calculator

Calculate study session duration between two clock times in hours and minutes.

Support Shift Duration Calculator

Calculate support shift duration between two clock times in hours and minutes.

Therapy Session Duration Calculator

Calculate therapy session duration between two clock times in hours and minutes.

Time Duration Calculator

Calculate the duration between two times in hours, minutes, and seconds.

Video Call Duration Calculator

Calculate video call duration between two clock times in hours and minutes.

Volunteer Shift Duration Calculator

Calculate volunteer shift duration between two clock times in hours and minutes.

Webinar Duration Calculator

Calculate webinar duration between two clock times in hours and minutes.

Weeks Between Dates Calculator

Calculate the number of whole weeks between two calendar dates.

Workout Duration Calculator

Calculate workout duration between two clock times in hours and minutes.