The ADR Said UTC and One Switch Unsaid It
A decision record mandates UTC everywhere and an IClock abstraction, and thirty files honour it - then one process-global AppContext switch in shared plumbing makes every timestamp column forget it was UTC.
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An Attendance System Plays Timezone Roulette
UTC timers, IST badge gates, DateTime.Now in one executable and UtcNow in the next, columns that record neither - how a system whose entire product is timestamps got away with never deciding what time it is.