diff --git a/net/wireshark/files/patch-wsutil_ws__strptime.c b/net/wireshark/files/patch-wsutil_ws__strptime.c
new file mode 100644
index 000000000000..4f6042e77541
--- /dev/null
+++ b/net/wireshark/files/patch-wsutil_ws__strptime.c
@@ -0,0 +1,33 @@
+--- wsutil/ws_strptime.c.orig	2023-11-17 16:54:52 UTC
++++ wsutil/ws_strptime.c
+@@ -197,9 +197,12 @@ ws_strptime(const char *buf, const char *fmt, struct t
+ 	    day_offset = -1, week_offset = 0, offs, mandatory;
+ 	const char *new_fmt;
+ 	long tm_gmtoff;
++	struct tm *gtm;
++	const time_t zero_secs = 0;
+ 	const char *tm_zone;
+ 
+ 	bp = (const unsigned char *)buf;
++	gtm = localtime(&zero_secs);
+ 
+ 	while (bp != NULL && (c = *fmt++) != '\0') {
+ 		/* Clear `alternate' modifier prior to new conversion. */
+@@ -570,7 +573,7 @@ namedzone:
+ 				}
+ 				/* 'J' is local time */
+ 				if (delim(bp[1]) && *bp == 'J') {
+-					tm_gmtoff = -timezone;
++					tm_gmtoff = gtm->tm_gmtoff;
+ 					tm_zone = NULL; /* XXX */
+ 					SET_ZONEP(zonep, tm_gmtoff, tm_zone);
+ 					bp++;
+@@ -605,7 +608,7 @@ namedzone:
+ 						 NULL, 2);
+ 				if (ep != NULL) {
+ 					tm->tm_isdst = i;
+-					tm_gmtoff = -timezone;
++					tm_gmtoff = gtm->tm_gmtoff;
+ 					tm_zone = tzname[i];
+ 					SET_ZONEP(zonep, tm_gmtoff, tm_zone);
+ 					bp = ep;