================================================================= Logtalk - Object oriented extension to Prolog Release 2.9.1 Copyright (c) 1998-2001 Paulo Moura. All Rights Reserved. ================================================================= % some queries using the time and date parametric objects: | ?- date(Year, Month, Day)::today. Year = 2000 Month = 8 Day = 15 Yes | ?- date(Year, _, _)::(today, leap_year). Year = 2000 yes | ?- time(Hours, Mins, Secs)::now. Hours = 13 Mins = 52 Secs = 42 Yes