diff --git a/ChangeLog b/ChangeLog
index 4de416145..09fd7aef4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -72,6 +72,7 @@ http://weechat.org/files/releasenotes/ReleaseNotes-devel.html[release notes]
 * aspell: fix detection of nicks with non-alphanumeric chars
 * guile: disable guile gmp allocator (fix crash on unload of relay plugin)
   (bug #40628)
+* irc: fix time parsed in tag of messages on Cygwin
 * irc: use statusmsg from message 005 to check prefix char in status
   notices/messages
 * irc: remove display of channel in channel notices, display "PvNotice" for
diff --git a/src/plugins/irc/irc-protocol.c b/src/plugins/irc/irc-protocol.c
index ba0723b43..125c819ae 100644
--- a/src/plugins/irc/irc-protocol.c
+++ b/src/plugins/irc/irc-protocol.c
@@ -4819,7 +4819,7 @@ irc_protocol_get_message_tag_time (struct t_hashtable *tags)
     if (strchr (tag_time, '-'))
     {
         /* date is with ISO 8601 format: "2012-11-24T07:41:02.018Z" */
-        strptime (tag_time, "%FT%T%z", &tm_date);
+        strptime (tag_time, "%Y-%m-%dT%H:%M:%S%z", &tm_date);
         if (tm_date.tm_year > 0)
         {
             time_msg = mktime (&tm_date);