Solution : https://service.sap.com/sap/support/notes/960259 (SAP Service marketplace login required)
Key words :
interactive <sid>ofr / <sid>adm jobs, terms zdate_large_time_difftime zonepase_tzwrksysval qtimzon reason, utc-8 means 8 hours east, build valid pase_tz environments, symptom large time difference, system wide environment pase_tz, pase_tz environment values, show current time, <sid>ofr 2, restart sap systems
Related Notes :
743113 | iSeries: Known Issues with V5R3M0 |
697353 | iSeries:DB4 Timezone Environment Variable/Large Time Diff |