Arguments

 

operation

   OpenVMS usage:function_code
   type:         longword (unsigned)
   access:       read only
   mechanism:    by reference

   The conversion to be performed. The operation argument is the
   address of an unsigned longword containing the operation. The
   following table shows valid values for operation:

   Operation               Type         Return Range

   LIB$K_MONTH_OF_YEAR     Absolute     1 to 12
   LIB$K_DAY_OF_YEAR       Absolute     1 to 366
   LIB$K_HOUR_OF_YEAR      Absolute     1 to 8784
   LIB$K_MINUTE_OF_YEAR    Absolute     1 to 527,040
   LIB$K_SECOND_OF_YEAR    Absolute     1 to 31,622,400
   LIB$K_DAY_OF_MONTH      Absolute     1 to 31
   LIB$K_HOUR_OF_MONTH     Absolute     1 to 744
   LIB$K_MINUTE_OF_MONTH   Absolute     1 to 44,640
   LIB$K_SECOND_OF_MONTH   Absolute     1 to 2,678,400
   LIB$K_DAY_OF_WEEK       Absolute     1 to 7
   LIB$K_HOUR_OF_WEEK      Absolute     1 to 168
   LIB$K_MINUTE_OF_WEEK    Absolute     1 to 10,080
   LIB$K_SECOND_OF_WEEK    Absolute     1 to 604,800
   LIB$K_HOUR_OF_DAY       Absolute     0 to 23
   LIB$K_MINUTE_OF_DAY     Absolute     0 to 1439
   LIB$K_SECOND_OF_DAY     Absolute     0 to 86,399
   LIB$K_MINUTE_OF_HOUR    Absolute     0 to 59
   LIB$K_SECOND_OF_HOUR    Absolute     0 to 3599
   LIB$K_SECOND_OF_MINUTE  Absolute     0 to 59
   LIB$K_JULIAN_DATE       Absolute     Julian date
   LIB$K_DELTA_WEEKS       Delta
   LIB$K_DELTA_DAYS        Delta
   LIB$K_DELTA_HOURS       Delta
   LIB$K_DELTA_MINUTES     Delta
   LIB$K_DELTA_SECONDS     Delta
 

resultant-time

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       write only
   mechanism:    by reference

   The external time that results from the conversion. The
   resultant-time argument is the address of an unsigned longword
   containing the result.
 

input-time

   OpenVMS usage:date_time
   type:         quadword (unsigned)
   access:       read only
   mechanism:    by reference

   Optional absolute or delta time to be converted. The input-time
   argument is the address of an unsigned quadword containing the
   time. If you do not supply a value for input-time, the current
   system time is used.