PHP is so convenient sometimes... I never runned into any sort of mathematical operation regarding date and time that could not be solved by using only 3 functions: date, time and strtotime. Java, on the other side... I spent days reading javadocs for loads and loads of Calendar, JulianCalendar, GregoryCalendar, MayanCalendar classes... having to use special classes for date parsing and converting back and forth from numerical to text data types... made me almost smash my head against a wall. In .NET, it was just fine... until it started to apply internationalization, time zones and etcetera to my calculations without I asking, and without even giving a warning about it. Sorry about the bad English.