How to display the exact minute of "log"---first column?

You can see in the picture1, I can tell the precise minute of every entry in “log”.
1.jpg

What RouterOS are you using?

Can you do it from CLI?

/log print

-Louis

What is the CLI? I used v3.6.

upgrade to 3.30 and retest.
CLI = Command Line Interface. aka the console
-Letni

/log print detail

this could help you