Document Complete vs Load Event Start

Im running bulk tests and from the result file “aggregate.csv” i have the metrics
[]Document Complete
]Load Event Start

They have exactly the same values, which makes also sense when reading the docs

Document Complete: The point where the browser onLoad event fires. The equivalent Navigation Timing event is loadEventStart.

Load Event Start: Time in ms since navigation started until window.onload event was triggered (from W3C Navigation Timing).

I want to ask if they measure in any case the same values? Are they identical?