Hi Sabyasachi,
What's your OS Version?
Is your SAP application hosted on Windows Server.
Please check-out SAP Note-447839.
Also to brief you about this common issue where in sometimes the OS time is reset back in the past and the SAP application observes this an warning and in severe situations as an ABAP dump.
On windows server, if the automatic synchronization of timezone is enabled it synchronizes to a master time server. Actually this should be fine, but in case of Windows server, what happens is that every time the synchronization happens from a master time server, the SAP server gets a hard reset i.e. Sudden decrease of time at the time of synchronization like from 11:45 AM to 10:45 AM. This kind of behavior affects the applications running on the server. This should have been soft reset i.e. 11:45 AM time should go back in time in fractions over the entire week (Soft Reset) until it is synced in real time. SAP applications running on windows server implemented with Hard reset of Time are absolutely not supported and in that case the hard reset must be refrained at all costs. Refer SAP Note 447839 for further details.
To narrow down the root cause of OS time shifts you can run a watchdog tool SAP time trace tool which logs the OS time every 5secs, so the next time whenever this occurs in the system it can be investigated what happened to the OS time at that instance.
If the described case matches with your scenario, you can disable the Automatic time synchronization feature on the windows server.
Regards,
Akshay
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