Here is the HELP text for RTVJOBA
<pre> CL var for DATETIME (20) (DATETIME) – Help
Specifies the name of a CL variable that receives the current local date
and time of the job. The variable must be a character variable with a
minimum length of 20 characters. The local job date and time is
returned in the format YYYYMMDDHHNNSSXXXXXX where YYYY is the year, MM
is the month, DD is the day, HH is the hours, NN is the minutes, SS is
the seconds, and XXXXXX is the microseconds.
That looks like it either the started or current time for a job.
If you want to get the time it entered the system, you would need to do a DSPJOB output(*PRINT) then interagate the spool file. The entered data/time is available there.</pre>