Time dependant product categories for users

config/initializers/date_modifications.rb

@@ -0,0 +1,12 @@
+class Date
+  # return the lowercased day name in English of the date object eg: monday or friday etc
+  def day_name
+    Date::DAYNAMES[wday].downcase
+  end
+end
+
+class Time
+  def minute_of_day
+    60 * hour + min
+  end
+end