Added
API - AVERAGE_WATCH_TIME_SEC
April 27th, 2026 by Morgane Le Rouzic
New metric available in Reporting API: AVERAGE_WATCH_TIME_SEC.
Average Watch Time (in seconds) = total watch time divided by the number of views over the selected period. Returns null when views = 0.
This metric is available with the same dimensions and breakdowns as VIEW_THROUGH_RATE. See the Reports metrics, dimensions, filters & products and the compatibility matrix for supported combinations.