If you were you take your shoes and socks (/tights/etc) off right now, how long do you think it would take before (a) someone noticed that you were bare-footed and (b) someone commented to you that you were bare-footed?
For me: I’m not planning to leave my desk for a while, until I need a wee and/or another drink. So I think I reckon I’m fine for an hour or so. (My feet are under my desk). I reckon it’d be noticeable to anyone walking past, so I’d say 1 hour for (a). In terms of someone commenting: I don’t reckon anyone would comment for ages. I reckon my wife would comment if I got home and was still bare-footed, so that’s four and a half hours away.