Daylight Saving Time (DST) change is coming soon
Ingolf24 120000DRN3 Visits (5419)
Today a reminder as every year. The Daylight Saving Time (DST) change is coming soon.
Many countries change to Daylight Saving Time (DST) in March. E.g. Canada and the USA will change on March 11, 2018 (most states), Germany on March 25. The clock is turned forward one hour at 2 am.
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 forward has normally no effect on subsystem operation. It may have an impact on accounting, however.
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.
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