Schedule shutdown of an interface

Good day,
A client wants me to shutdown a particular internet on a Mikrotik 95ui every 3rd Sunday of each month.
Please is there a script that can achieve this.
Thank you in advance.

Create a script with this line:

/interface ethernet set ether3 disabled=yes

schedule it to the time you like the if to go down.

Add another script with this line

/interface ethernet set ether3 disabled=no

and schedule it to come up at another time.