How to close access to the Internet during working hours in Mikrotik, and open it during lunch and after work?

Question

Access rights

There is a task to block access to the Internet for all users except 5 computers, while the local network and mail clients should work. Access to the Internet opens at lunchtime for 1 hour and after work. Hardware Mikrotik Route OS 6.42.5.

Answer 1

You need to use the time attribute in the firewall rules.
More

Answer 2

Write a rule that allows "those five" to tyrnet
Write a rule that lets everyone else tyrnet.
If the default is to allow, then before the "for all" rule, write a rule blocking the "for all" typing and turn it on or off with a script.
If the default is to disable, then use the script to turn on/off the allowing rule "for all".