//DFDSS PROC
//DSS EXEC PGM=ADRDSSU
//DD1 DD UNIT=3480,VOL=SER=TAPE04,
// LABEL=(1,SL),DISP=(NEW,CATLG),
// DSN=BACKUP.A&LYYMMDD.A&LHHMMSS
//SYSPRINT DD SYSOUT=*
//SYSIN DD DSN=SYS1.SYSIN(DFDUMP),DISP=SHR
JES2 replaces the &LYYMMDD and &LHHMMSS with local date and time. Note that this works only if the job is started as a started task.