Provides date subtraction, parsing, and random timestamp generation. Source code on GitHub.
For subtracting two dates from each other, provides class DateDifference that can store the difference between two dates, provides some overloaded functionality, and provides some static methods subtract_datetimes and subtract_datestrings to subtract datetimes and formatted date strings, respectively.
A simple parser that is used in the interpretation of date strings, provides parse_raw_date_string to get a datetime from a string formatted as "%Y-%m-%d " (note the trailing space), or as "%Y-%m-%d %H:%M".
Functionality for getting a random time within a specified range, provides generate_random_timestamp to generates a random timestamp in the range [00:00:00 - hours:minutes:seconds).
Unit tests are provided for subtract_datestrings.