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Timestamp confidence interval
An instant is a point estimate plus an error bar — 12:03:10 ±150 ms, not a single moment. Near an hour boundary the ±window straddles two slots, so the assignment is not unique (the temporal weighted crosswalk).
Class
Case to account for
Affects
1 conversion
01
Detection
The ±window around the estimate crosses a slot boundary.
02
Mitigation
01
Represent the instant as (epoch ± ms); enumerate candidate slots and report a confidence, do not snap.
03
Affected conversions
Timestamp + zonehour-of-week slot
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