ST_TimeZoneInformation

Time zone information.

TYPE ST_TimeZoneInformation :
STRUCT
    bias         : DINT; (* Specifies the current bias, in minutes, for local time translation on computer.
        The bias is the difference, in minutes, between Coordinated Universal Time (UTC) and local time.
        UTC = local time + bias *)

    standardName : STRING(31); (* Specifies a string associated with standard time on computer. *)

    standardDate : TIMESTRUCT; (*Specifies a time structure that contains a date and local time 
                when the transition from daylight saving time to standard time occurs on computer.*)

    standardBias : DINT; (* Specifies a bias value to be used during local time translations that occur during standard time. *)

    daylightName : STRING(31); (* Specifies a string associated with daylight saving time on computer.
    For example, this member could contain "PDT" to indicate Pacific Daylight Time.*)

    daylightDate : TIMESTRUCT; (* Specifies a time structure that contains a date and local time when the transition 
                    from standard time to daylight saving time occurs on computer. *)

    daylightBias : DINT; (* Specifies a bias value to be used during local time translations that occur during daylight saving time. *)
END_STRUCT
END_TYPE

The standard time is also called winter time. The bias parameter can also be negative values.

bias: Defines the current difference in minutes between local time and UTC time. UTC = local time + bias.

standardName: Description of the standard time as string.

standardDate:  This structure contains information about the transition from daylight-saving time (summer time) to standard time. The structure parameter wMonth is zero, if this value is unused. If this parameter is used, the daylightDate- parameter has to be used too. To be able to configure the standardDate- parameter set the wYear- parameter zero, select the desired day of week at wDayOfWeek and at wDay a value between 1 and 5 ( week in the month, 5 is the last week in the month).

standardBias: Time difference in minutes for calculations of the local time during the standard time. This value is mostly zero.

daylightName: Description for the daylight-saving time (summer time) as string.

daylightDate: This structure contains information about the transition from standard time to daylight saving time ( summer time). The structure parameter wMonth is zero, if this value is unused. If this parameter is used, the standardDate- parameter has to be used too. To be able to configure the standardDate- parameter set the wYear- parameter zero, select the desired day of week at wDayOfWeek and at wDay a value between 1 and 5 ( week in the month, 5 is the last week in the month)

daylightBias: Time difference in minutes for calculation of the local time during the daylight-saving time.