Unverified50% confidenceFactExact time
Leap seconds cause timestamps to repeat or go backward, potentially leading to out-of-order logs, database primary key conflicts and anomalies in distributed consensus algorithms; the 2012 leap second caused brief outages at sites such as Reddit and Mozilla.
1
Sources
50%
Confidence
Long-term
Relevance
10/16/2026
First Seen
Sources
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