{{alias}}( [month[, day, year]] )
    Returns the day of the year.

    By default, the function returns the day of the year for the current date
    (according to local time). To determine the day of the year for a particular
    day, provide `month`, `day`, and `year` arguments.

    A `month` may be either a month's integer value, three letter abbreviation,
    or full name (case insensitive).

    The function also accepts a `Date` object.

    Parameters
    ----------
    month: string|integer|Date (optional)
        Month (or `Date`).

    day: integer (optional)
        Day.

    year: integer (optional)
        Year.

    Returns
    -------
    out: integer
        Day of the year.

    Examples
    --------
    > var day = {{alias}}()
    <number>
    > day = {{alias}}( new Date() )
    <number>
    > day = {{alias}}( 12, 31, 2016 )
    366

    // Other ways to supply month:
    > day = {{alias}}( 'dec', 31, 2016 )
    366
    > day = {{alias}}( 'december', 31, 2016 )
    366

    See Also
    --------