It appears that the message analysis provided for cloud connectors displays data in periods delineated as GMT when the filter appears to indicate local time (GMT-8 in my case).
I have a test capturing hourly data using a four hour Store and Forward timer. A slight change was made to the S&F period at 14:02 PDT, resulting in data sent at that time. The event appears in the device stream at 14:02 (GMT-8) as expected. However, in the message analysis display accessed using the (HTTP) cloud connector (button at bottom right of BODY tab), the message generated when the change was made (14:02 PST) appears in the 22-23 hour.
The filter is specified as :
Mar 9, 2022 00:00:00 GMT-8
Mar 9, 2022 23:59:59 GMT-8
The data that is displayed appears to correspond to GMT rather than GMT-8 as indicated.