Question
Why does the Backlog dataset only show Backlog recorded - Hour as 23?
Answer
Because backlog data is captured on a per-day basis, it cannot be segmented hourly. The Backlog recorded - Hour is listed as 23 because data is captured daily between 11 pm, 12 am, or 1 am depending on factors like Daylight Saving Time (DST).
For more information, see the article: Analyzing your ticket backlog history with Explore.