Hi Paul, Could you take a look at https://bugzilla.kernel.org/show_bug.cgi?id=207345 please. It relates to the documentation of the -c and -t options. My guess is this: in "-c 2018,2020", 2018 is translated to the seconds equivalent of '2018-01-01 00:00:00" and likewise for 2020. And though the seconds range may be treated as low-bound-exclusive plus high-bound-inclusive, the user is easily confused, because the output *looks like* low-bound-year-inclusive plus high-bound-year-inclusive. I think some more words in the manual page about this would be helpful. Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/