Enforcing Login-Time on NAS

[Shiv]

I know that Login-Time can be used with Users and Groups but is there
a way to use this with NAS'?
For example, If I want NAS-A to allow logins only from 1700-1800 and
NAS-B to allow logins only from 0900-1300. How would I be able to
ensure this?

I have tried this with Huntgroups, but only able to prevent/allow
logins unconditionally. How do I attach the Login-Time attribute to
NAS and not users or groups?

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Regards,
Shivkumar