When will the altseason finally come! 1 The Bitcoin halving occurred on July 9, 2016. The first altseason began on March 1, 2017 and lasted 310 days until January 5, 2018. The altseason began 235 days after the halving! 2 The Bitcoin halving occurred on May 11, 2020. The second altseason began on January 3, 2021 and lasted 309 days until November 10, 2021. The altseason began 237 days after the halving! 3 Bitcoin halving occurred on April 19, 2024. If you add 235 days, then... The second altseason will start around December 10, 2024. Wait)