On-chain events are often scheduled by block number, not clock time
Token unlocks, contract upgrades, and network forks are frequently keyed to a specific block height rather than a calendar date — block numbers are deterministic and can’t be delayed the way a human-announced date can. That makes converting “block X” into “roughly when” a genuinely useful, and slightly non-trivial, calculation.
How it works
The tool reads the chain’s current block number, samples recent block timestamps to compute an average block time, then multiplies that by the number of blocks remaining until your target — all via public RPC calls from your browser.