Ethereum Electra
Where this time comes from
1606824023 + 364,032 × 32 × 12
= 1746612311
— which is 7 May 2025, 10:05 UTC.
No node answered this, and no data vendor sold it. The same arithmetic reproduces
every Ethereum upgrade since Altair to the second, which
bin/check-calendar.php asserts on every run.
Put that beside a proof-of-work halving, where
the same question has a five-week answer: one of these chains knows the second, and
the other cannot know the month.
Validator consolidation up to 2048 ETH, execution-layer triggered exits, and account abstraction for ordinary addresses (EIP-7702).
The activation time is derived, not reported: epoch 364,032 x 32 slots x 12 seconds after the beacon chain genesis at 1606824023. No node and no data vendor is involved, and the same arithmetic reproduces every other upgrade on this list to the second.
Where this came from
Checked against those sources by a person on 23 September 2026. A curated calendar’s only claim to trust is that somebody looked.
More on Ethereum, including what we measure it costs to sell.