How to determine the kernel compilation time stamp ?

Hi, all
sorry of this is a miss post.
I'm trying to find out the date (time stamp) using the
"uname -a" command  , but I'm not sure this is the correct way , because the
the output of the command returns the kernel release date and I'm not sure this is the
correct time
Any suggestions ?
Victor

I'm referring to the date the kernel was actually compiled .
My question was if the output of the command "uname -a" contains the kernel compilation date, because
the "man uname" and "info uname" says that the output contains kernel  release info.
Or is there another way of determining the actual date(time) when the kernel was compiled.

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