def year2sec(years):
    """
    Convert decimal Julian years into seconds.

    Julian years have 365.25 days.

    Parameters:

    * years : float
        Time in years

    Returns:

    * seconds : float
        Time in seconds

    Example::

        >>> print year2sec(1)
        31557600.0

    """
    return 31557600.0 * float(years)