Across all AVEVA Adapters, standardize the specification of time zones

Some AVEVA Adapters do not let you specify the time zone of the timestamp. Those that do let you specify the time zone do so inconsistently. For example, the AVEVA Adapter For Structured Data Files lets you specify a time zone from the IANA time zone database (see this). The AVEVA Adapter For RDBMS lets you specify only UTC or local time through a Boolean value (see this).

Please review the specification of time zones across all AVEVA Adapters, including those that are still in development, and standardize this specification to include all of the features of those individual specifications, plus whatever else might help. The standardized specification should allow at least the following:

• Specification of a time zone from the IANA time zone database

• Specification of a time zone through a UTC offset for cases where the data follows the standard time of a time zone but does not adjust for daylight savings time

• A way to specify local time (i.e. the time zone of the AVEVA Adapter's computer or the data source's computer if the time zone can be retrieved from that computer). This is different from selecting the current IANA time zone because "local" will adapt to the computer's time zone without the user needed to reconfigure the AVEVA Adapter to specify the change in time zone.