DECEMBER

Returns the range of valid days for this month within a given year

A textual representation of the month, suitable for display purposes. The localized name will be returned, if available. If not, the ISO month number (1-12) will be returned instead.

Returns the day of the year that this month's first days falls on. This may vary depending on whether or not the year is a leap year. For example, the first day of MARCH will be either 60th or 61st day of the year.

Returns the last day of the month in year.

Returns the day of the year that this month's last day falls on. This may vary depending on whether or not the year is a leap year. For example, the last of FEBRUARY will be either 59th or 60th day of the year.

Returns the number of days in the month in year.

The localized name of the month, if available for the locale in the specified style. The result depends on the configured DateTimeTextProvider and may differ between platforms.

Returns this month with months subtracted from it, wrapping when the beginning or end of the year is reached.

Returns this month with months added to it, wrapping when the beginning or end of the year is reached.