Calculates the difference between two dates and returns the result as seconds, minutes, hours, and days.

Compares two dates and returns the result as integer.

Builds a date String using the specified pattern and the specified date services.

Builds a date/time string using the specified pattern and the specified date services.

Converts date/time (represented as a String) string from one format to another.

Returns the current date as a String in a specified format.

Increments a date by a specified period.