7.60 SECNDS — Time subroutine

Description:

SECNDS(X) gets the time in seconds from the real-time system clock. X is a reference time, also in seconds. If this is zero, the time in seconds from midnight is returned. This function is non-standard and its use is discouraged.

Option:

gnu

Class:

function

Syntax:

T = SECNDS (X)

Arguments:

Name	Type
T	REAL(4)
X	REAL(4)

Return value:

None

Example:

          program test_secnds
              real(4) :: t1, t2
              print *, secnds (0.0)   ! seconds since midnight
              t1 = secnds (0.0)       ! reference time
              do i = 1, 10000000      ! do something
              end do
              t2 = secnds (t1)        ! elapsed time
              print *, "Something took ", t2, " seconds."
          end program test_secnds