diff --git a/src/main.rs b/src/main.rs
index e49d423..aa52402 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -100,6 +100,8 @@ async fn convert(urls: &[&str], days: Option<&String>) -> Result<CustomCalendar>
         calendar_index += 1;
     }
 
+    entries.sort_by(|a, b| a.start.cmp(&b.start));
+
     Ok(CustomCalendar{entries})
 }