diff --git a/xs_time.h b/xs_time.h
index eaced75..4da9463 100644
--- a/xs_time.h
+++ b/xs_time.h
@@ -145,7 +145,9 @@ struct {
     { "GMT-13",   13 },
     { "GMT-14",   14 },
     { "GMT-15",   15 },
+    { "WET",      0 },
     { "CET",      -1 },
+    { "AST",      -4 },
     { "CST",      -6 },
     { "MST",      -7 },
     { "PST",      -8 },