Point in time of day

Let's get a date object containing today's noon:

let now = new Date(); let date = new Date(now.getFullYear(), now.getMonth(), now.getDate(), 12);

And now it's noon tomorrow:

let now = new Date(); let date = new Date(now.getFullYear(), now.getMonth(), now.getDate() + 1, 12);

Determine how many hours have passed between yesterday afternoon and the current point in time.

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enru