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LibJS+LibUnicode: Change time zones in a way that works on Windows
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Browse source 
On Windows, ICU does not look at the TZ environment variable at all. So
to support changing time zones in test-js, let's set ICU's default time
zone directly.

Note that we no longer deal with "null" time zone strings. We just cache
whatever ICU thinks is the current time zone before attempting to change
it, for which we never have a null result.

Co-authored-by: Andrew Kaster <andrew@ladybird.org>
This commit is contained in:
Timothy Flynn 2025-06-01 08:22:19 -04:00 • committed by Tim Flynn
commit 8ded0c65dc
Notes: github-actions[bot] 2025-06-01 22:50:05 +00:00
4 changed files with 34 additions and 33 deletions
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4
Libraries/LibUnicode/TimeZone.h
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@ -1,11 +1,12 @@
/*
* Copyright (c) 2024, Tim Flynn <trflynn89@serenityos.org>
* Copyright (c) 2024-2025, Tim Flynn <trflynn89@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Error.h>
#include <AK/Optional.h>
#include <AK/String.h>
#include <AK/Time.h>
@ -24,6 +25,7 @@ struct TimeZoneOffset {
};
String current_time_zone();
ErrorOr<void> set_current_time_zone(StringView);
void clear_system_time_zone_cache();
Vector<String> const& available_time_zones();
Vector<String> available_time_zones_in_region(StringView region);