Keep track of time (Julian days and seconds)

INTERFACE:

    subroutine update_time(n)

DESCRIPTION:

Based on a starting time this routine calculates the actual time in a model integration using the number of time steps, n, and the size of the time step, timestep. More public variables can be updated here if necessary.

USES:

    IMPLICIT NONE

INPUT PARAMETERS:

    integer, intent(in)                 :: n

REVISION HISTORY:

    Original author(s): Karsten Bolding & Hans Burchard