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+      SUBROUTINE sla_CD2TF (NDP, DAYS, SIGN, IHMSF)
+*+
+*     - - - - - -
+*      C D 2 T F
+*     - - - - - -
+*
+*  Convert an interval in days into hours, minutes, seconds
+*
+*  (single precision)
+*
+*  Given:
+*     NDP       int      number of decimal places of seconds
+*     DAYS      real     interval in days
+*
+*  Returned:
+*     SIGN      char     '+' or '-'
+*     IHMSF     int(4)   hours, minutes, seconds, fraction
+*
+*  Notes:
+*
+*     1)  NDP less than zero is interpreted as zero.
+*
+*     2)  The largest useful value for NDP is determined by the size of
+*         DAYS, the format of REAL floating-point numbers on the target
+*         machine, and the risk of overflowing IHMSF(4).  For example,
+*         on the VAX, for DAYS up to 1.0, the available floating-point
+*         precision corresponds roughly to NDP=3.  This is well below
+*         the ultimate limit of NDP=9 set by the capacity of the 32-bit
+*         integer IHMSF(4).
+*
+*     3)  The absolute value of DAYS may exceed 1.0.  In cases where it
+*         does not, it is up to the caller to test for and handle the
+*         case where DAYS is very nearly 1.0 and rounds up to 24 hours,
+*         by testing for IHMSF(1)=24 and setting IHMSF(1-4) to zero.
+*
+*  Called:  sla_DD2TF
+*
+*  P.T.Wallace   Starlink   12 December 1993
+*
+*  Copyright (C) 1995 Rutherford Appleton Laboratory
+*-
+
+      IMPLICIT NONE
+
+      INTEGER NDP
+      REAL DAYS
+      CHARACTER SIGN*(*)
+      INTEGER IHMSF(4)
+
+
+
+*  Call double precision version
+      CALL sla_DD2TF(NDP,DBLE(DAYS),SIGN,IHMSF)
+
+      END