The Reddit 12.5-hour time decay rule, explained
Reddit's hot formula subtracts the equivalent of 10× your vote score every 12.5 hours. Here is where the 45000 constant comes from and what it means for scheduling.
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How to upvote on Reddit (and how upvotes actually work)
A Reddit upvote is one signed vote from a logged-in account. Click the up arrow to the left of a post or comment. Here is how the vote travels through the ranking system after that.
Continue Reading![Reddit algorithm explained: why 94% of posts fail [2026 update]](/_next/image?url=%2Fimages%2Fblog%2Freddit-algorithm-explained.svg%3Fv%3Djngs8kxs&w=3840&q=75&dpl=dpl_AQBDUwXaSFnPoEsE9AuUe2Qxwd1B)
Reddit algorithm explained: why 94% of posts fail [2026 update]
How Reddit's hot-ranking formula actually works in 2026, why 94% of posts die in 2 hours, and the upvote-velocity infrastructure that saves good content.
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