I would do it a little different - like this:
time-range lobby
periodic weekdays 0:00 to 7:59
periodic weekdays 16:31 to 23:59
periodic weekend 0:00 to 23:59
!
ip access-list extended lobby
deny ip any any time-range lobby
!
interface gigabitethernet 2/0/38
ip access-group lobby in
Just make sure that time on the device is correct, and probably best to sync with NTP, correct time zone etc...
This will deny traffic out of hours including the weekend.
hth
Bilal
Please rate useful posts & remember to mark any solved questions as answered. Thank you.