--- zip30/timezone.c	2024-05-21 05:14:55.959957517 +0000
+++ zip30/timezone.c	2024-05-21 05:15:14.852006815 +0000
@@ -41,6 +41,7 @@
 #include "timezone.h"
 #include <ctype.h>
 #include <errno.h>
+#include <time.h>

 #ifdef IZTZ_DEFINESTDGLOBALS
 long timezone = 0;