I was going to write command tmux detach but I accidentally pressed some other key/ key combinations and saw a big clock on the whole terminal. There was just time printed and nothing else.

I don't know whether it appeared because of a package I installed unknowingly or because of a native Linux/centos package.

The most relatable thing that I could say I found was is the image present in this answer.

The text font was very much similar to the font present in the above-mentioned image.


tmux has a clock-mode that can be accessed with Prefixt. So, by default it can be toggled on/off by pressing Ctrl+bt. See man tmux.

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    I've accepted it as the answer. Sorry, I can't upvote it because I don't have enough reputation here. – Kartik Chauhan Feb 6 at 21:13

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