Block Time

Definition ∞ Block time represents the average duration required to generate a new block on a blockchain. This metric directly influences transaction confirmation speed and network throughput. Shorter block times generally mean faster transaction processing but can sometimes impact decentralization or security depending on the consensus mechanism. It is a fundamental parameter defining a blockchain’s operational characteristics.
Context ∞ Discussions around block time often center on the trade-offs between speed, security, and decentralization within various blockchain protocols. Protocol upgrades, such as Ethereum’s transition to Proof of Stake, frequently aim to optimize block time to improve network performance and user experience.