Clock changes (Daylight Saving Time ends) soon
Ingolf24 120000DRN3 Visits (7702)
In October and beginning of November many countries change their clocks to winter time, that is one hour backward. In Germany we change our clocks on October 29, in the USA on November 5.
That is it's again time to prepare for that change.
With the z/VSE IPL commands SET ZONEDEF and SET ZONEBDY you can switch between standard and daylight local times without changing the IPL startup procedure each time. However, you have to IPL the system in order to switch to the new time zone, see the z/VSE System Control Statements for details. That book is here.
A local time change backwards could affect subsystems and accounting routines more severely.
Therefore I recommend to IPL the z/VSE system for any time changes.
There is also