diff --git a/include/tz_database.hrl b/include/tz_database.hrl
index add4841..7e6ac2f 100644
--- a/include/tz_database.hrl
+++ b/include/tz_database.hrl
@@ -427,33 +427,33 @@
       {"Eire",{"GMT","GMT"},{"IST","IST"},0,60,{last,sun,mar},{1,0},{last,sun,oct},{2,0}},
       {"Etc/GMT",{"GMT","GMT"},undef,0,0,undef,{0,0},undef,{0,0}},
       {"Etc/GMT+0",{"GMT","GMT"},undef,0,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+1",{"GMT+1","GMT+1"},undef,-60,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+10",{"GMT+10","GMT+10"},undef,-600,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+11",{"GMT+11","GMT+11"},undef,-660,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+12",{"GMT+12","GMT+12"},undef,-720,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+2",{"GMT+2","GMT+2"},undef,-120,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+3",{"GMT+3","GMT+3"},undef,-180,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+4",{"GMT+4","GMT+4"},undef,-240,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+5",{"GMT+5","GMT+5"},undef,-300,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+6",{"GMT+6","GMT+6"},undef,-360,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+7",{"GMT+7","GMT+7"},undef,-420,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+8",{"GMT+8","GMT+8"},undef,-480,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT+9",{"GMT+9","GMT+9"},undef,-540,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+1",{"GMT+1","GMT+1"},undef,60,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+10",{"GMT+10","GMT+10"},undef,600,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+11",{"GMT+11","GMT+11"},undef,660,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+12",{"GMT+12","GMT+12"},undef,720,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+2",{"GMT+2","GMT+2"},undef,120,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+3",{"GMT+3","GMT+3"},undef,180,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+4",{"GMT+4","GMT+4"},undef,240,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+5",{"GMT+5","GMT+5"},undef,300,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+6",{"GMT+6","GMT+6"},undef,360,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+7",{"GMT+7","GMT+7"},undef,420,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+8",{"GMT+8","GMT+8"},undef,480,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT+9",{"GMT+9","GMT+9"},undef,540,0,undef,{0,0},undef,{0,0}},
       {"Etc/GMT-0",{"GMT","GMT"},undef,0,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-1",{"GMT-1","GMT-1"},undef,60,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-10",{"GMT-10","GMT-10"},undef,600,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-11",{"GMT-11","GMT-11"},undef,660,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-12",{"GMT-12","GMT-12"},undef,720,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-13",{"GMT-13","GMT-13"},undef,780,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-14",{"GMT-14","GMT-14"},undef,840,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-2",{"GMT-2","GMT-2"},undef,120,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-3",{"GMT-3","GMT-3"},undef,180,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-4",{"GMT-4","GMT-4"},undef,240,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-5",{"GMT-5","GMT-5"},undef,300,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-6",{"GMT-6","GMT-6"},undef,360,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-7",{"GMT-7","GMT-7"},undef,420,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-8",{"GMT-8","GMT-8"},undef,480,0,undef,{0,0},undef,{0,0}},
-      {"Etc/GMT-9",{"GMT-9","GMT-9"},undef,540,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-1",{"GMT-1","GMT-1"},undef,-60,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-10",{"GMT-10","GMT-10"},undef,-600,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-11",{"GMT-11","GMT-11"},undef,-660,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-12",{"GMT-12","GMT-12"},undef,-720,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-13",{"GMT-13","GMT-13"},undef,-780,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-14",{"GMT-14","GMT-14"},undef,-840,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-2",{"GMT-2","GMT-2"},undef,-120,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-3",{"GMT-3","GMT-3"},undef,-180,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-4",{"GMT-4","GMT-4"},undef,-240,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-5",{"GMT-5","GMT-5"},undef,-300,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-6",{"GMT-6","GMT-6"},undef,-360,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-7",{"GMT-7","GMT-7"},undef,-420,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-8",{"GMT-8","GMT-8"},undef,-480,0,undef,{0,0},undef,{0,0}},
+      {"Etc/GMT-9",{"GMT-9","GMT-9"},undef,-540,0,undef,{0,0},undef,{0,0}},
       {"Etc/GMT0",{"GMT","GMT"},undef,0,0,undef,{0,0},undef,{0,0}},
       {"Etc/Greenwich",{"GMT","GMT"},undef,0,0,undef,{0,0},undef,{0,0}},
       {"Etc/UCT",{"UCT","UCT"},undef,0,0,undef,{0,0},undef,{0,0}},