The TimeZoneOffset Property represents the difference of the local time to Coordinated Universal Time (UTC) given by the machine operator or OPC client.

Information: TimeZoneDataType (as defined in OPC UA Part 3) is a structure with two components:

• offset (0:UInt16): Time difference from UTC in minutes (e.g. 120 for daylight saving time in Berlin)
• daylightSavingInOffset (0:Boolean): If TRUE, then daylight saving time (DST) is in effect and offset includes the DST correction. If FALSE, then the offset does not include DST correction and DST may or may not have been in effect.

NOTE: The UTC time itself is part of OPC UA Part 5: ServerStatus CurrentTime.