Some user accounts auto shut down

[Guest]

I can't see anyone else with this problem, some of my user accounts auto shut
down while running at around 11.30pm, I have no idea why, no parental
control/time restrictions, my admin account never does it, driving my
babysitters mad but I don't want them on my admin account.

 

[hithere]

check that user account. see if you have restrictions and check how long
before you require password change.

 

[Guest]

Thank you for replying, no restrictions and no password, any ideas?