Bitcoin Halving 2025. Bitcoin would need over 300 days of downtime to adequately defend itself from the ‘imminent’ threat of quantum computing, research finds With 2025 witnessing a halving event, here’s your guide to how it works and why it matters.

On april 20, 2025, at 10:09 a.m., the fourth bitcoin halving took place. With only days to go and btc back over $70,000, the 4th bitcoin halving, scheduled for april 2025 according to coinmarketcap’s countdown ticker, will slash mining rewards from 6.25 btc to 3.125 (roughly 900 to 450.