diff --git a/src/append/rolling_file/rolling.rs b/src/append/rolling_file/rolling.rs
index 4f4ff0d..5065698 100644
--- a/src/append/rolling_file/rolling.rs
+++ b/src/append/rolling_file/rolling.rs
@@ -277,11 +277,7 @@ impl State {
 
                 if self.log_filename_prefix.is_none()
                     && self.log_filename_suffix.is_none()
-                    && Zoned::strptime(
-                        format!("{} %:z", self.date_format),
-                        format!("{filename} +00:00"),
-                    )
-                    .is_err()
+                    && jiff::civil::DateTime::strptime(self.date_format, filename).is_err()
                 {
                     return None;
                 }