solana-epoch-schedule is used at run time in 123 crates (of which 1 optionally). It is a direct run-time dependency in 2 crates. It's used only as a dev dependency in 7 crates.

Depender (with downloads and own rev deps) solana-epoch-schedule version
1.1M 546 solana-program =2.1.0
5.5K 23 solana-feature-set =2.1.0