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by pjungwir 1960 days ago
I agree with this, mostly.

Besides the "meeting time" exception others have mentioned, you should be aware of timezones when grouping records into days/weeks/months/years/etc. The timezone affects where you "cut" the continuum into groups. Does Joe's sale count toward his January quota or February? This has all kinds of interesting questions: do you use the user's time zone? The local office timezone? The HQ timezone? UTC for everything? What if the user moves? Stack Overflow's "fanatic" badge just uses UTC: https://stackoverflow.com/help/badges/83/fanatic