The time difference from 4/20/2018 12:37:00 AM to 4/20/2018 9:27:00 AM is 10-minutes shy of 9-hours.
Why, then, does ?DateDiff("h", "4/20/2018 12:37:00 AM", "4/20/2018 9:27:00 AM") return 9 instead of 8?
?DateDiff("n", "4/20/2018 12:37:00 AM", "4/20/2018 9:27:00 AM") returns 530 minutes. That's not quite 9-hours.
?DateDiff("h", "4/20/2018 12:00:00 AM", "4/20/2018 8:59:59 AM") returns 8 - it does not ROUND IT UP to 9.
Anyone explain this? Perhaps I've gone mad. Am beginning to wonder.