myFree Date & Time Calculators
14 calculators
Free date and time tools including age calculator, date difference, countdown timers, stopwatch, timezone converter, business day calculator and more. Everything time-related — from simple countdowns to precise timezone conversions — in one place.
Age Calculator
Exact age in years, months and days — plus birthday countdown.
Business Day Calculator
Working days between dates with public holiday exclusions.
Chess Timer
Two-player turn clock with increment support.
Countdown Timer
Count down to any future date or event with live display.
Date Difference
Days, weeks and months between any two dates.
Days Until
Countdown to Christmas, birthdays & custom events.
How Old in Days?
Your age in days, weeks and hours — live counter.
Interval Timer
HIIT, Tabata & circuit training interval timer.
Multiple Timers
Run several named countdown timers simultaneously.
Reaction Time Test
Measure your reaction speed in milliseconds.
Stopwatch
Precision stopwatch with lap recording and split times.
Timezone Converter
Convert times between cities worldwide with live clocks.
Weeks Until Christmas
Live countdown to Christmas and any custom event.
What Day Was I Born?
Discover the weekday of your birth and life stats.
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