Sun Studio 12: Fortran Library Reference ctime64, gmtime64, ltime64: System Time Routines for 64-bit Environments

These are versions of the corresponding routines ctime, gmtime, and ltime, to provide portability on 64-bit environments. They are identical to these routines except that the input variable stime must be INTEGER*8.

When used in a 32-bit environment with an INTEGER*8 stime, if the value of stime is beyond the INTEGER*4 range ctime64 returns all asterisks, while gmtime and ltime fill the tarray array with -1.