I have read on a french site that there is a new feature in V5R3 for hour tuning, in iseries navigator (my connexions / my400 / configuration).
it explains that you can work QTIMADJ, make a “smart” hour change (for example request 10 minutes to add 5 minutes), and more interesting, you can choose a hour object
ask your IBM representative about this new objects … and feed back us with your conclusion
Be aware that manipulating the system time may invalidate audit results and should <b>not</b> be done. Timestamps can be a legal element of transaction data.
Although it is inconvenient, the fact is that the local time does actually repeat. If you have manipulated your system time, then your timestamps are invalid and there is no (legal/audit) reason to maintain them in the first place — they are false. You might as well simply store a 64-bit sequence number or similar.
Don’t store time info in local time. Store it as UTC and convert to local time when it’s handled by a presentation layer. Otherwise, don’t process transactions during “repeat” hours.