Time & Date

Calculate exact age in years, months, days

Compare ages between two people

Days until next birthday

Add or subtract time from dates

Calculate days between two dates

Countdown to a specific date

Calculate hours between times

Set countdown timers

Add or subtract time (hours, minutes, seconds)

View current time across multiple time zones

Find overlapping work hours across multiple time zones

Convert between 12-hour, 24-hour, and decimal time formats

Get the ISO week number for any date

Track elapsed time with lap functionality

Focus timer with work and break intervals

Check if a year is a leap year

Calculate total work hours and overtime

Calculate duration between two times

Find sunrise and sunset times for any location

Day of year, quarter, business days, and date formatting