Bitcoin calendar
Bitcoin holidays every year, the next halving countdown and upcoming conferences. Add any of it to your calendar (.ics).
Next halving: #5, block 1,050,000
Reward 3.125 → 1.5625 BTC. Estimate from the live height (972,648) and the recent average block time (9.7 min, mempool.space); the date moves as hashrate changes.
Bitcoin holidays
Every year, sorted by how soon they come. Dates in UTC; each one links to the source.
The whitepaper was published on 31 Oct 2008. (18 years)
Taproot activated at block 709,632 on 14 Nov 2021. (5 years)
Block 210,000 halved the reward on 28 Nov 2012. (14 years)
Satoshi's last BitcoinTalk post is dated 12 Dec 2010. (16 years)
Block 0 was mined on 3 Jan 2009. (18 years)
Satoshi announced the first release on 8 Jan 2009. (18 years)
The SEC approved spot bitcoin ETPs on 10 Jan 2024. (3 years)
Satoshi sent 10 BTC to Hal Finney on 12 Jan 2009. (18 years)
The executive order was signed on 6 Mar 2025. (2 years)
Satoshi's P2P Foundation profile gave 5 April 1975 as his date of birth. (52 years)
10,000 BTC for two pizzas on 22 May 2010. (17 years)
The domain was registered on 18 Aug 2008. (19 years)
SegWit activated at block 481,824 on 24 Aug 2017. (10 years)
El Salvador's Bitcoin Law took effect on 7 Sep 2021. (6 years)
On 12 Oct 2009 Martti 'Sirius' Malmi sold 5,050 BTC to NewLibertyStandard for $5.02 via PayPal (about $0.001 per BTC, near NewLibertyStandard's published rate) — the first known Bitcoin-to-fiat trade. On-chain: block 24,835, 5,050 BTC (mempool.space). At $83,316 per BTC (mempool.space, 14 Oct 2026 11:45 London) those coins would be worth about $420.7M. (18 years)
Upcoming Bitcoin conferences
Dates from the organisers' websites; check before travelling. Same list as on Events.