diff --git a/git-repository/src/revision/spec/parse/delegate.rs b/git-repository/src/revision/spec/parse/delegate.rs
index 5fd6264b3f..e8c26d91f5 100644
--- a/git-repository/src/revision/spec/parse/delegate.rs
+++ b/git-repository/src/revision/spec/parse/delegate.rs
@@ -271,9 +271,17 @@ impl<'repo> delegate::Revision for Delegate<'repo> {
         }
     }
 
-    fn reflog(&mut self, _query: ReflogLookup) -> Option<()> {
+    fn reflog(&mut self, query: ReflogLookup) -> Option<()> {
         self.unset_disambiguate_call();
-        todo!()
+        match query {
+            ReflogLookup::Date(_date) => {
+                self.err.push(Error::Planned {
+                    dependency: "remote handling and ref-specs are fleshed out more",
+                });
+                None
+            }
+            ReflogLookup::Entry(_no) => todo!("entry lookup"),
+        }
     }
 
     fn nth_checked_out_branch(&mut self, branch_no: usize) -> Option<()> {
diff --git a/git-repository/tests/revision/spec/from_bytes/reflog.rs b/git-repository/tests/revision/spec/from_bytes/reflog.rs
index 6c65e95742..e26cd9ec35 100644
--- a/git-repository/tests/revision/spec/from_bytes/reflog.rs
+++ b/git-repository/tests/revision/spec/from_bytes/reflog.rs
@@ -1,4 +1,5 @@
-use crate::revision::spec::from_bytes::{parse_spec, repo};
+use crate::revision::spec::from_bytes::{parse_spec, parse_spec_no_baseline, repo};
+use git_repository::revision::spec::parse::Error;
 
 #[test]
 fn nth_prior_checkout() {
@@ -20,3 +21,12 @@ fn nth_prior_checkout() {
         "HEAD has 5 prior checkouts and checkout number 6 is out of range"
     );
 }
+
+#[test]
+fn by_date() {
+    let repo = repo("complex_graph").unwrap();
+    assert!(matches!(
+        parse_spec_no_baseline("main@{1979-02-26 18:30:00}", &repo).unwrap_err(),
+        Error::Planned { .. }
+    ));
+}