diff --git a/.changelog/unreleased/breaking-changes/909-self-conventions.md b/.changelog/unreleased/breaking-changes/909-self-conventions.md
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+* `[tendermint]` Rename `time::Time::to_rfc3339` to `as_rfc3339` to be
+  consistent with Rust's [self reference
+  conventions](https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention)
+  ([#910](https://github.com/informalsystems/tendermint-rs/pull/910))