Utilize crontab to run ssh command in tmux

0 22 * * * /usr/bin/tmux new -d && /usr/bin/tmux send-keys -t 0 “vnstat -l” ENTER
0 23 * * * /usr/bin/tmux send-keys -t 0 C-c

Just for reference, please verify if the command fits your needs. Such as, if there are old tmux sessions in place, the new session number won’t be 0, you might want to specify session name with -s.