In Magit log buffer commits (one per line) are shown with relative date. This is nice for recent commits, but makes little sense for older changes. In particular, this makes it annoyingly hard to relate commit dates to specific date, e.g. to find answer to question "which change might have broken the release on 3rd of April?".
Is it possible to somehow change the way commit dates are shown? I only found magit-duration-spec, but that's not exactly what I need.
This feature is now accessible through magit-log-margin. See this ticket and this commit.
(t "%Y-%m-%d %H:%M " magit-log-margin-width t 18), which looks like this in the Customize interface and the date looks like this as a result.
L + l and it toggles through a format until you get absolute dates. magit.vc/manual/magit/Log-Margin.html#index-L-l
If you need to be sure about the author and/or commit date of a particular commit, then you can always just show that commit in a separate buffer by pressing RET with point on that commit in the log.
But that's not very convenient if you have to do it a lot of course. I have started working on making this more flexible.
magit-log-margin.