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Some models state the right DST rule, then apply last week's offset anyway. I tested 46 models; in the pre-registered part, 91% of wrong deadline conversions were exactly that one-hour mistake. It replicated, and the newest models fixed it.

This story is from 2026-10-07. It is preserved in the archive; the latest stories are on the live feed.

The model knew the rule. It still used last week's offset. Kaggle Benchmarking Challenge Submission Hugo Valer Hugo Valer Hugo Valer Follow Oct 7 The model knew the rule. It still used last week's offset. # devchallenge # kagglechallenge # machinelearning # ai 1 reaction Add Comment 13 min read

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  1. 2026-10-07 10:29 · DEV Community — AI
    Some models state the right DST rule, then apply last week's offset anyway. I tested 46 models; in the pre-registered part, 91% of wrong deadline conversions were exactly that one-hour mistake. It replicated, and the newest models fixed it.

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