Date & Time Tools

Calculate your exact age in years, months, weeks, days, hours, and minutes from your date of birth, with countdown to your next birthday.

Calculate the exact number of days, weeks, months, and years between any two calendar dates.

Quickly count the exact total number of days between two dates with optional inclusive day count.

Add a number of calendar days or business days to any starting date to determine the exact future target date.

Subtract days, weeks, or months from any date to find the historical past date and day of the week.

Calculate elapsed duration between two clock times (hours, minutes, seconds) with overnight 24-hour wrap-around support.

Create real-time countdown timers for custom events, holidays, product launches, and birthdays with full-screen mode and audio alert.

High-precision online stopwatch with millisecond accuracy, lap time split tracking, and CSV lap export.

Compare current times across global timezones (UTC, EST, PST, GMT, CET, IST, JST, AEST) with interactive time slider for meeting scheduling.

Find the current ISO 8601 week number of the year, total weeks in any given year, and the start and end dates of each calendar week.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until New Year.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Martin Luther King Jr Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Valentine's Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Presidents' Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until St. Patrick's Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Easter.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Earth Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Cinco de Mayo.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Mother's Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Memorial Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Father's Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Summer Solstice.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Independence Day (4th of July).

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Labor Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Autumn Equinox.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Halloween.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Veterans Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Thanksgiving.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Black Friday.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Cyber Monday.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Winter Solstice.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Christmas Eve.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until Christmas Day.

Live ticking countdown clock showing exact days, hours, minutes, and seconds until New Year's Eve.