Google uses 200+ ranking factors and dwell time is one of those factors.
Dwell Time is the amount of time that a Google searcher spends on a page from the search results before returning back to the SERPs. Many SEO professionals consider Dwell Time an important Google ranking signal.
- Dwell time: the amount of time that passes between the moment a user clicks a search result and subsequently returns back to the SERPs.
- Bounce rate: the percentage of single-page sessions (i.e. visitors who only visit one page on your website before leaving). These people may have returned to the SERPs or simply closed the page. It doesn’t matter which. It also makes no difference whether they stuck around for 2 seconds or 2 hours, it’s still a “bounce”.
- Time on page: the amount of time a visitor spent on your page before going anywhere else. This could be back to the SERPs, to another page on your website, to a bookmarked page—anywhere.