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calcom/packages/lib/isProblematicTimezone.ts

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+// This function is purely necessary because of react-timezone-select see
+// https://github.com/spencermountain/spacetime/issues/323
+// https://github.com/spencermountain/timezone-soft/issues/17
+// and https://github.com/ndom91/react-timezone-select/issues/76
+// for more context
+function isProblematicTimezone(tz: string): boolean {
+  const problematicTimezones = [
+    "null",
+    "Africa/Malabo",
+    "Africa/Maseru",
+    "Africa/Mbabane",
+    "America/Anguilla",
+    "America/Antigua",
+    "America/Aruba",
+    "America/Bahia",
+    "America/Cayman",
+    "America/Dominica",
+    "America/Grenada",
+    "America/Guadeloupe",
+    "America/Kralendijk",
+    "America/Lower_Princes",
+    "America/Maceio",
+    "America/Marigot",
+    "America/Montserrat",
+    "America/Nassau",
+    "America/St_Barthelemy",
+    "America/St_Kitts",
+    "America/St_Lucia",
+    "America/St_Thomas",
+    "America/St_Vincent",
+    "America/Tortola",
+    "Antarctica/McMurdo",
+    "Arctic/Longyearbyen",
+    "Asia/Bahrain",
+    "Atlantic/St_Helena",
+    "Europe/Busingen",
+    "Europe/Guernsey",
+    "Europe/Isle_of_Man",
+    "Europe/Mariehamn",
+    "Europe/San_Marino",
+    "Europe/Vaduz",
+    "Europe/Vatican",
+    "Indian/Comoro",
+    "Pacific/Saipan",
+    "Africa/Asmara",
+  ];
+  return problematicTimezones.includes(tz);
+}
+export default isProblematicTimezone;