diff --git a/zebra-chain/src/block/header.rs b/zebra-chain/src/block/header.rs
index 110b859ae..9a0c24434 100644
--- a/zebra-chain/src/block/header.rs
+++ b/zebra-chain/src/block/header.rs
@@ -83,9 +83,9 @@ pub enum BlockTimeError {
 }
 
 impl Header {
-    /// TODO: Inline this function into zebra_consensus::block::check::is_time_valid_at.
+    /// TODO: Inline this function into zebra_consensus::block::check::time_is_valid_at.
     /// See https://github.com/ZcashFoundation/zebra/issues/1021 for more details.
-    pub fn is_time_valid_at(
+    pub fn time_is_valid_at(
         &self,
         now: DateTime<Utc>,
         height: &Height,
diff --git a/zebra-chain/src/block/tests/vectors.rs b/zebra-chain/src/block/tests/vectors.rs
index 1860a81e7..4cf04ccef 100644
--- a/zebra-chain/src/block/tests/vectors.rs
+++ b/zebra-chain/src/block/tests/vectors.rs
@@ -186,10 +186,10 @@ fn block_limits_single_tx() {
     Block::zcash_deserialize(&data[..]).expect_err("block should not deserialize");
 }
 
-/// Test wrapper for `BlockHeader.is_time_valid_at`.
+/// Test wrapper for `BlockHeader.time_is_valid_at`.
 ///
 /// Generates a block header, sets its `time` to `block_header_time`, then
-/// calls `is_time_valid_at`.
+/// calls `time_is_valid_at`.
 fn node_time_check(
     block_header_time: DateTime<Utc>,
     now: DateTime<Utc>,
@@ -197,7 +197,7 @@ fn node_time_check(
     let mut header = generate::block_header();
     header.time = block_header_time;
     // pass a zero height and hash - they are only used in the returned error
-    header.is_time_valid_at(now, &Height(0), &Hash([0; 32]))
+    header.time_is_valid_at(now, &Height(0), &Hash([0; 32]))
 }
 
 #[test]
diff --git a/zebra-consensus/src/block/check.rs b/zebra-consensus/src/block/check.rs
index 1ec64de22..0eb97a9ec 100644
--- a/zebra-consensus/src/block/check.rs
+++ b/zebra-consensus/src/block/check.rs
@@ -94,7 +94,7 @@ pub fn time_is_valid_at(
     height: &Height,
     hash: &Hash,
 ) -> Result<(), zebra_chain::block::BlockTimeError> {
-    header.is_time_valid_at(now, height, hash)
+    header.time_is_valid_at(now, height, hash)
 }
 
 /// Returns `Ok(())` if the block subsidy and miner fees in `block` are valid for `network`