When using the composer add and replace commands, a Job Scheduler has synchronicity problems

The composer add and replace commands do not correctly validate the time zone used in the Job Scheduler definition at daylight savings; as a consequence, the following unexpected warning message is displayed:

`AWSBIA148W WARNING: UNTIL time occurs before AT time for <workstation>#<schedule>. AWSBIA019E For <workstation>#<schedule> Errors 0, warnings 1. AWSBIA106W The schedule definition has warnings. AWSBIA015I Schedule <workstation>#<schedule> added.`

AWSBIA148W  WARNING: UNTIL time occurs before AT time for 
 <workstation>#<schedule>.
 AWSBIA019E  For <workstation>#<schedule> Errors 0, warnings 1.
AWSBIA106W  The schedule definition has warnings.
AWSBIA015I  Schedule <workstation>#<schedule> added.

The same might happen for the deadline keyword.

Cause and solution:

The problem is related to the C-Runtime Library date and time functions that fail to calculate the correct time during the first week of daylight savings time.

To ensure the accuracy of scheduling times, for the time argument of the at, until, or deadline scheduling keywords, specify a different value than that of the start time for the IBM Workload Scheduler production period defined in the global options file. These values must differ from one another by plus or minus one hour.