DateTime.php DateTime implementation for several calendars Purpose of project is to provide interface for dealing with calendars where have Year, Month, Day, DayOfWeek. Interface uses DateInterval, DateTimeZone Classes. It's similar to php's DateTime Class. -BaseDateTime class is abstract constrol's parsing, formating or anything where not related to any specific calendar, it require some variables like textual month names and week names where will be defined in higher level classes. -RYMDateTime compunds calendar's commonalities, it is 12 month calendars with 7 days week, Gregorian | Persian | Islamic calendars are example use of it. Copyright (C) 2012 Hossein Amin This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.