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Calciyums

Date & Time

Age, days between dates, date arithmetic and countdowns.

Age CalculatorFind your exact age in years, months and days, plus how many days, hours and minutes you've lived.
Days Between Dates CalculatorFind how many days, weeks, months and working days lie between two dates.
Birthday CountdownFind out how many days are left until your next birthday and which weekday it falls on.
Add / Subtract Days from a DateAdd or subtract days, weeks, months or years to a date and see which weekday the result falls on.
CountdownSee how many days, weeks and working days are left until a date, or how long ago it was.
Date Format ConverterConvert a date into other formats and see its weekday, day of the year and ISO week number.