Calculates how old a person or a thing was, is, or will be on a user-defined date, based on the date of birth of the person or thing.

Calculates the end of a date range, given the start date and the number of days in the range. Allows to specify only business days as the number of days, calculating the weekends on it's own. NOT Recursive.

Returns a date that is "n" working days from StartDate.

Finds consecutive items in a list of values and returns the first of each group. Designed to find a free time slice in an agenda, for example.

Calculation that allows you to calculate the previous weekday (so last friday, last sunday etc).

Formats and translates date according to a pattern in one of the supported languages.

Add years, months and/or days values to a source date to get a new date.

Starting with your reference date calculate a range backward x months

allow user to input dates faster

Returns the date of the first day in the month of the given date

Returns date parsed from text in the format of "YYYY-MM-DD".

Extracts all valid dates from a text and formats them as a list

This function allows you to calculate a date in the future for a specific day of the week that is n away.

return valid date as number of days since 0001-01-01 or nothing if invalid

Returns 1 if the year is a leap year, else 0.