3393298 - Time difference of XXX secs between system time and system time zone

You are doing ABAP system upgrade via SUM.
An error occurred in phase "MAIN_SHDRUN/SUBMOD_RRC_TRIGGER_DEFAULT/RUN_TNXMON_RRC_CRE_SET". In log file "LCKCHK_RRC_SET.<SID>", there is following error.

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Checks after phase MAIN_SHDRUN/SUBMOD_RRC_TRIGGER_DEFAULT/RUN_TNXMON_RRC_CRE_SET were negative!

Last error code set:
Single errors (code <= 8) found in logfile 'PHASE_RUN.ELG'

Error: Batchjob RSUPG_LCKCHK_RRC failed.
The following errors were detected in the log files:
# Find the detailed information in log 'LCKCHK_RRC_SET.<SID>':
A4 ESUPG 665 Report name ...: RSUPG_LCKCHK_RRC Component: BC-UPG-TLS-TLA (Upgrade Tools for ABAP)
A4 ESUPG 788 Release/SP......: source=750/0021, 1stShd=750/0021, target=750/0028
A4 ESUPG 002
A4 ESUPG 001 --------------------------------------------------------------------------------------------------------------------------------------------
A4 ESUPG 003 System Date/Time: 16.10.2023 09:46:52, Local System Timezome (XXX): XYZ
A4 ESUPG 002 System Timezone: XYZ
A2EESUPG2 028 Time difference of 3.600,0000000 secs between system time and system time zone

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NetWeaver ABAP system.

System time, System time zone, Time difference, SUM , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-SRV-TIM-TZ , Time zones , Problem