diff --git a/homeassistant/components/recorder/history/modern.py b/homeassistant/components/recorder/history/modern.py
index ec38fca001e..513f1870cc0 100644
--- a/homeassistant/components/recorder/history/modern.py
+++ b/homeassistant/components/recorder/history/modern.py
@@ -611,9 +611,7 @@ def _sorted_states_to_dict(
     axis correctly.
     """
     field_map = _FIELD_MAP
-    state_class: Callable[
-        [Row, dict[str, dict[str, Any]], datetime | None], State | dict[str, Any]
-    ]
+    state_class: Callable[[Row, dict[str, dict[str, Any]]], State | dict[str, Any]]
     if compressed_state_format:
         state_class = row_to_compressed_state
         attr_time = COMPRESSED_STATE_LAST_UPDATED
@@ -657,7 +655,7 @@ def _sorted_states_to_dict(
             or split_entity_id(entity_id)[0] in NEED_ATTRIBUTE_DOMAINS
         ):
             ent_results.extend(
-                state_class(db_state, attr_cache, None, entity_id=entity_id)  # type: ignore[call-arg]
+                state_class(db_state, attr_cache, entity_id=entity_id)  # type: ignore[call-arg]
                 for db_state in group
             )
             continue
@@ -671,7 +669,7 @@ def _sorted_states_to_dict(
                 continue
             prev_state = first_state.state
             ent_results.append(
-                state_class(first_state, attr_cache, None, entity_id=entity_id)  # type: ignore[call-arg]
+                state_class(first_state, attr_cache, entity_id=entity_id)  # type: ignore[call-arg]
             )
 
         state_idx = field_map["state"]
diff --git a/homeassistant/components/recorder/models/state.py b/homeassistant/components/recorder/models/state.py
index e9538fb0753..01a9e3a332b 100644
--- a/homeassistant/components/recorder/models/state.py
+++ b/homeassistant/components/recorder/models/state.py
@@ -51,7 +51,6 @@ class LazyState(State):
         self,
         row: Row,
         attr_cache: dict[str, dict[str, Any]],
-        start_time: datetime | None,
         entity_id: str | None = None,
     ) -> None:
         """Init the lazy state."""
@@ -59,9 +58,7 @@ class LazyState(State):
         self.entity_id = entity_id or self._row.entity_id
         self.state = self._row.state or ""
         self._attributes: dict[str, Any] | None = None
-        self._last_updated_ts: float | None = self._row.last_updated_ts or (
-            dt_util.utc_to_timestamp(start_time) if start_time else None
-        )
+        self._last_updated_ts: float | None = self._row.last_updated_ts
         self._last_changed_ts: float | None = (
             getattr(self._row, "last_changed_ts", None) or self._last_updated_ts
         )
@@ -138,7 +135,6 @@ class LazyState(State):
 def row_to_compressed_state(
     row: Row,
     attr_cache: dict[str, dict[str, Any]],
-    start_time: datetime | None,
     entity_id: str | None = None,
 ) -> dict[str, Any]:
     """Convert a database row to a compressed state schema 31 and later."""
@@ -146,13 +142,10 @@ def row_to_compressed_state(
         COMPRESSED_STATE_STATE: row.state,
         COMPRESSED_STATE_ATTRIBUTES: decode_attributes_from_row(row, attr_cache),
     }
-    if start_time:
-        comp_state[COMPRESSED_STATE_LAST_UPDATED] = dt_util.utc_to_timestamp(start_time)
-    else:
-        row_last_updated_ts: float = row.last_updated_ts
-        comp_state[COMPRESSED_STATE_LAST_UPDATED] = row_last_updated_ts
-        if row_last_updated_ts != (
-            row_changed_changed_ts := getattr(row, "last_changed_ts", None)
-        ):
-            comp_state[COMPRESSED_STATE_LAST_CHANGED] = row_changed_changed_ts
+    row_last_updated_ts: float = row.last_updated_ts
+    comp_state[COMPRESSED_STATE_LAST_UPDATED] = row_last_updated_ts
+    if row_last_updated_ts != (
+        row_changed_changed_ts := getattr(row, "last_changed_ts", None)
+    ):
+        comp_state[COMPRESSED_STATE_LAST_CHANGED] = row_changed_changed_ts
     return comp_state