Format of $TIMET$ in performance data

Entering this post to find out what the format of the $TIMET$ value is in the performance data files (using the default template). Currently it is a 10 digit value, e.g. 1146853318

I’d like to convert it to human readable format but it isn’t the 26 byte value expected from ctime, localtime or the like.

Hints anyone?

…found what I was looking for in ./share/docs/macros.html. $TIMET$ is current time in time_t format. $LONGDATETIME$ is what I changed it to for what I needed.