ac

Print statistics on how long users have been connected. More information: https://man.openbsd.org/ac.

• Print how long the current user has been connected in hours:

ac

• Print how long users have been connected in hours:

ac -p

• Print how long a particular user has been connected in hours:

ac -p {{username}}

• Print how long a particular user has been connected in hours per day (with total):

ac -dp {{username}}