Why do clocks always show 10.10?

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Did you ever pay attention? When you enter a watch store, clocks in the display windows or walls or in clock advertisements in general, show 10:10.
go to an online sales site and search for watches. Omit the Digitals by filtering only the Analog ones. Almost all of the hundreds of models of dozens of brands are in the 10:10 position. The dates and days on them might be different, but time seems to have frozen at the same point.
Actually, it wasn't always like this. Until the 1950s, they were photographed pointing 8:20. However, that changed from the 1950s onwards. Now we can consider that the default state of the clocks is 10:10.
But why? There are some theories about this, but some of them are urban legends. In this video, Let's get them out of the way first, then let's take a look at the scientific side of the issue.