Most of the PI interfaces stores value into PI server in UTC timeformat.
Do PI cloud also stores PI tag data in UTC time format using PI AF SDK?
PI Cloud Connect does not store any data as such. The section of the PI AF Database that is exposed as a Publication will access any PIPoint data stored as UTC, the Subscriptions will store the relevant PI AF section and any PIPoint created on the Subscription side will have its data stored in UTC format. The AFSDK calls will maintain the same UTC timestamps.
Hope that helps.
Internally, a PI 3.x Data Archive stores data using UTC timestamps. So I believe PI Cloud Connect will need to convert data to UTC time format in order to store it in the PI Data Archive too.
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