Is there a log-in log on macOS?
I'd use the Terminal command last for a more complete list of logins.

Execute the command last [yourusername] will generate a list of tty and console logins.

Ex: last icondaemon generates:

icondaemon     ttys000                   Wed Feb 21 08:12   still logged in
icondaemon     console                   Wed Feb 21 07:57   still logged in
icondaemon     console                   Tue Feb 20 07:52 - 15:24  (07:31)
icondaemon     console                   Fri Feb 16 07:16 - 16:03  (08:46)
icondaemon     console                   Thu Feb 15 07:33 - 16:25  (08:51)
icondaemon     ttys000                   Wed Feb 14 09:34 - 09:34  (00:00)
icondaemon     ttys000                   Wed Feb 14 09:34 - 09:34  (00:00)
icondaemon     console                   Wed Feb 14 07:36 - 16:19  (08:42)
icondaemon     console                   Tue Feb 13 07:31 - 15:57  (08:25)
icondaemon     console                   Mon Feb 12 07:32 - 16:30  (08:57)
icondaemon     console                   Fri Feb  9 08:51 - 15:48  (06:57)


...

icondaemon     ttys000                   Wed Nov  1 15:22 - 15:22  (00:00)
icondaemon     ttys000                   Wed Nov  1 15:21 - 15:21  (00:00)
icondaemon     console                   Wed Nov  1 11:36 - 15:53  (04:16)


I'm not sure what happened on November 1st to rollover the log.