diff --git a/ext/standard/datetime.c b/ext/standard/datetime.c
index 36de532e1e6..29ea203580c 100644
--- a/ext/standard/datetime.c
+++ b/ext/standard/datetime.c
@@ -489,8 +489,8 @@ char *php_std_date(time_t t)
 	tm1 = gmtime_r(&t, &tmbuf);
 	str = emalloc(81);
 	if (PG(y2k_compliance)) {
-		snprintf(str, 80, "%s, %02d-%s-%04d %02d:%02d:%02d GMT",
-				day_full_names[tm1->tm_wday],
+		snprintf(str, 80, "%s, %02d %s %04d %02d:%02d:%02d GMT",
+				day_short_names[tm1->tm_wday],
 				tm1->tm_mday,
 				mon_short_names[tm1->tm_mon],
 				tm1->tm_year+1900,