Event ID 1 — WinSAT Application Start: StartTimeOfDay.

{
  "system": {
    "provider": "Microsoft-Windows-WindowsSystemAssessmentTool",
    "guid": "11A75546-3234-465E-BEC8-2D301CB501AC",
    "event_source_name": "",
    "event_id": 1,
    "version": 0,
    "level": 0,
    "task": 1,
    "opcode": 1,
    "keywords": 9223372036854775808,
    "time_created": "2022-04-04T08:01:33.192091+00:00",
    "event_record_id": 1,
    "correlation": {},
    "execution": {
      "process_id": 3768,
      "thread_id": 4432
    },
    "channel": "Microsoft-Windows-WindowsSystemAssessmentTool/Operational",
    "computer": "WIN-TKC15D7KHUR",
    "security": {
      "user_id": "S-1-5-21-1958040314-2592322477-2606035944-500"
    }
  },
  "event_data": {
    "StartTimeOfDay": "2022-04-04T08:01:33.191900Z"
  },
  "message": ""
}