Platform configuration of a NiagaraAX host includes specifying its time zone. This affects both real time clock accuracy used in station control, an also how timestamps appear in items like histories and alarms. This appendix provides details on time zone selection in all revisions of NiagaraAX, including the currently used “historical time zone database.”

The following main sections are included:

Workbench provides a special “Time Zone Database Tool” that lets you explore the historical time zone database on the local Workbench host. For details, refer to the User Guide section on the “Time Zone Database Tool”.