module ByStar module Kernel module Time # A "Weekend" is defined as the 60-hour period from 15:00 Friday to 03:00 Monday. # The weekend for a given date will be the the next weekend if the day Mon-Thurs, # otherwise the current weekend if the day is Fri-Sun. def beginning_of_weekend beginning_of_week(:monday).advance(:days => 4) + 15.hours end def end_of_weekend (beginning_of_weekend + 59.hours).end_of_hour end # A "Fortnight" is defined as a two week period, with the first fortnight of the # year beginning on 1st January. def beginning_of_fortnight (beginning_of_year.to_date + 14 * ((self - beginning_of_year) / 2.weeks).to_i).beginning_of_day end def end_of_fortnight (beginning_of_fortnight.to_date + 13).end_of_day end # A "Calendar Month" is defined as a month as it appears on a calendar, including days form # previous/following months which are part of the first/last weeks of the given month. def beginning_of_calendar_month(*args) beginning_of_month.beginning_of_week(*args) end def end_of_calendar_month(*args) end_of_month.end_of_week(*args) end end end end ::Time.__send__(:include, ByStar::Kernel::Time)