Datetime functions.Copyright (C) 1999, Massimo Dal Zotto <dz@cs.unitn.it>This software is distributed under the GNU General Public Licenseeither version 2, or (at your option) any later version.
I have written some new funtions for time and date data types which canbe used to extract hour,minutes,seconds from time values, and year,month,day from a date. There is also a time_difference and functionsto convert a time to minutes or seconds.
There are also new input/output functions for the time data type whichallow the insertion of time attributes with value 24:00:00.This can be useful if your application needs to compute time differencefrom two time values representing an elapsed time of 24 hours.