[drcongo]

It's that opening paragraph.

> Coffee in hand, I sit down in the Cave. Any Tuesday during the work week, a sip, and I parse the calendar.

How many Tuesdays are there in his work week?

[SAI_Peregrinus]

3-5, usually. Tuesday is used as a placeholder for "generic day like any other". Monday & Friday might be special, or they might not. But Tuesday, Wednesday, and Thursday are generic & interchangeable: you're not catching up after a weekend, and there's a work day the next day so there will be time to catch issues. They're Tuesdays in spirit, if not in fact.

[drcongo]

Interesting, I've never come across this usage but makes sense.

[buildsjets]

My work week consists of five Tuesdays. It's the seventh best day of the week.