Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibUnicode/TimeZone.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2024, Tim Flynn <trflynn89@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Optional.h>
+#include <AK/String.h>
+#include <AK/Time.h>
+#include <AK/Vector.h>
+
+namespace Unicode {
+
+struct TimeZoneOffset {
+    enum class InDST {
+        No,
+        Yes,
+    };
+
+    AK::Duration offset;
+    InDST in_dst { InDST::No };
+};
+
+String current_time_zone();
+void clear_system_time_zone_cache();
+Vector<String> const& available_time_zones();
+Vector<String> available_time_zones_in_region(StringView region);
+Optional<String> resolve_primary_time_zone(StringView time_zone);
+Optional<TimeZoneOffset> time_zone_offset(StringView time_zone, UnixDateTime time);
+
+}