Bitcoin calendar.
Halvings and network upgrades, the US releases that move markets, conferences, and the anniversaries of Bitcoin's history. Dates are in UTC.
In 11 days
Difficulty adjustment
NetworkThursday 12 November (estimate)
At block 975,744, mining is expected to get about 0.9% harder, so blocks keep arriving about every 10 minutes.
July 2026
| Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| 6 | 7 | 8 | 9The second halving, 2016 | 10 | 11 | 12 |
| 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| 27 | 28 | 29 | 30Coldcard thefts | 31 |
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Events in July 2026
Thursday 9 July115 days ago
The second halving, 2016
10 years ago. At block 420,000 the reward for mining a block fell from 25 to 12.5 bitcoin, the second halving.
NetworkSee block 420,000SourceBitcoin Core source, nSubsidyHalvingInterval = 210000
Thursday 30 July94 days ago
Coldcard wallets drained through a seed bug
Attackers took about 594 bitcoin from about 500 Coldcard hardware wallets, using a firmware bug that made the devices' seeds (the secret words that back up a wallet) far easier to guess than intended. Galaxy Research later counted about 1,806 bitcoin taken across several waves.
NetworkSourceCoinkite, Coldcard Security Advisory (30 Jul 2026, updated 1 Aug 2026)