When you define additional system symbols in the IEASYMxx parmlib member (see Step 4. Create an IEASYMxx parmlib member), ensure that you do not specify the names shown in Table 1, which are system symbols that are reserved for system use.
| Symbol Name | Symbol Name | Symbol Name |
|---|---|---|
| &DATE | &DAY | &HHMMSS |
| &HR | &JDAY | &JOBNAME |
| &LDATE | &LDAY | &LHHMMSS |
| &LHR | &LJDAY | &LMIN |
| &LMON | &LSEC | <IME |
| &LWDAY | &LYR2 | &LYR4 |
| &LYYMMDD | &MIN | &MON |
| &SEC | &SEQ | &SID |
| &SYSALVL | &SYSCLONE | &SYSNAME |
 &SYSOSLVL |
&SYSPLEX | &SYSR1 |
| &SYSUID | &TIME | &WDAY |
| &YR2 | &YR4 | &YYMMDD |
If you try to define a system symbol that is reserved for system use, the system might generate unpredictable results when performing symbolic substitution.