diff --git a/codex-rs/core/src/rollout/list.rs b/codex-rs/core/src/rollout/list.rs
index a66986724..f42b4795c 100644
--- a/codex-rs/core/src/rollout/list.rs
+++ b/codex-rs/core/src/rollout/list.rs
@@ -243,9 +243,7 @@ impl serde::Serialize for Cursor {
     {
         let ts_str = self
             .ts
-            .format(&format_description!(
-                "[year]-[month]-[day]T[hour]-[minute]-[second]"
-            ))
+            .format(&Rfc3339)
             .map_err(|e| serde::ser::Error::custom(format!("format error: {e}")))?;
         serializer.serialize_str(&format!("{ts_str}|{}", self.id))
     }
@@ -628,9 +626,13 @@ pub fn parse_cursor(token: &str) -> Option<Cursor> {
         return None;
     };
 
-    let format: &[FormatItem] =
-        format_description!("[year]-[month]-[day]T[hour]-[minute]-[second]");
-    let ts = PrimitiveDateTime::parse(file_ts, format).ok()?.assume_utc();
+    let ts = OffsetDateTime::parse(file_ts, &Rfc3339).ok().or_else(|| {
+        let format: &[FormatItem] =
+            format_description!("[year]-[month]-[day]T[hour]-[minute]-[second]");
+        PrimitiveDateTime::parse(file_ts, format)
+            .ok()
+            .map(PrimitiveDateTime::assume_utc)
+    })?;
 
     Some(Cursor::new(ts, uuid))
 }
@@ -967,10 +969,7 @@ async fn read_head_summary(path: &Path, head_limit: usize) -> io::Result<HeadTai
             RolloutItem::SessionMeta(session_meta_line) => {
                 summary.source = Some(session_meta_line.meta.source.clone());
                 summary.model_provider = session_meta_line.meta.model_provider.clone();
-                summary.created_at = summary
-                    .created_at
-                    .clone()
-                    .or_else(|| Some(rollout_line.timestamp.clone()));
+                summary.created_at = Some(session_meta_line.meta.timestamp.clone());
                 summary.saw_session_meta = true;
                 if summary.head.len() < head_limit
                     && let Ok(val) = serde_json::to_value(session_meta_line)