Defines Gregorian Calendar date values. Lots of helpful functions for use in massaging dates, specific to the Gregorian calendar system. The

public static DateHelper::dayOfWeek($date = NULL)

public static DateHelper::monthNamesAbbrUntranslated()

public static DateHelper::weekDays($required = FALSE)

public static DateHelper::weekDaysUntranslated()

public static DateHelper::monthNamesAbbr($required = FALSE)

public static DateHelper::seconds($format = 's', $required = FALSE, $increment

public static DateHelper::daysInMonth($date = NULL)

public static DateHelper::ampm($required = FALSE)

public static DateHelper::weekDaysOrdered($weekdays)