diff --git a/comms/jpilot/patches/patch-ab b/comms/jpilot/patches/patch-ab
new file mode 100644
index 00000000000..56d4d72d721
--- /dev/null
+++ b/comms/jpilot/patches/patch-ab
@@ -0,0 +1,11 @@
+--- datebook.c.orig	Fri Feb 25 02:33:24 2000
++++ datebook.c	Thu May  4 14:39:30 2000
+@@ -382,7 +382,7 @@
+    int isdst;
+    
+    isdst = tm1->tm_isdst;
+-   tm1->tm_isdst = 0;
++   tm1->tm_isdst = -1;
+    t1 = mktime(tm1);
+    if (-1 == adj) {
+       gmt = gmtime(&t1);