Functions to convert and change date and time objects.
Gets the difference timespan between two date / datetime objects.
Returns current date and time.
Adding a number of seconds (positive or negative value) to a specified date and time.
Adding a number of minutes (positive or negative value) to a specified date and time object.
Adding a number of hours (positive or negative value) to a specified date.
Adding a number of days (positive or negative value) to a specified date.
Adding a number of months (positive or negative value) to a specified date.
Adding a number of years (positive or negative value) to a specified date.