How does Google determine how long a visitor stays on a site?

Neurosells said:

I don’t know but couldn’t they/don’t they use chrome data as well. There’s thousands of people searching logged into google accounts.

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We don't use Google Analytics in Search, and Google Analytics & Search Console track data quite differently. SC tracks what's shown in Search, GA tracks what happens when a user goes to a site. There's overlap, but it's not exact.

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