1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/timezone.el b/lisp/timezone.el
index 3de071a4a70..a7ff21d8310 100644
--- a/lisp/timezone.el
+++ b/lisp/timezone.el
@@ -176,7 +176,7 @@ Understands the following styles:
            ;; Styles: (4) with timezone
            (setq year 3 month 2 day 1 time 4 zone 5))
           ((string-match
-            "\\([0-9]+\\)-\\([A-Za-z]+\\)-\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9]+:[0-9]+\\)\\.[0-9]+" date)
+            "\\([0-9]+\\)-\\([A-Za-z]+\\)-\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9]+:[0-9]+\\)\\(\\.[0-9]+\\)?" date)
            ;; Styles: (5) without timezone.
            (setq year 3 month 2 day 1 time 4 zone nil))
           ((string-match