Nick Gammon’s clock

I have just put Nick Gammon’s great clock project together on a breadboard and I am happy to report that as expected it worked right out of the box. I am just wondering where the ”slider switch lets you disable the alarm during holidays.” should be placed within the circuit and also the minor code alterations required to implement this function. Thanks for another excellent project Nick.
Pedro

Edit - The disclaimer "The code is provided "as is" with no warranty as to whether you wake up or not" is a nice touch Nick XD

It's already there. SW2 on the bottom right-hand corner of the photo. And it's in the code.

Thanks Nick. I misunderstood the function of that switch