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LibJS: Respect the user-provided time zone in Intl.DateTimeFormat

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Also update some DateTimeFormat tests to explicitly set the time zone
(usually to UTC). This was already done for most tests, but some were
missed.
This commit is contained in:
Timothy Flynn
2022-01-12 08:22:47 -05:00
committed by Linus Groh
parent 8987deb984
commit d64ea13565
Notes: sideshowbarker 2024-07-17 21:02:31 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/d64ea13565e
Pull-request: https://github.com/SerenityOS/serenity/pull/11822
Reviewed-by: https://github.com/linusg
4 changed files with 16 additions and 20 deletions
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5
Userland/Libraries/LibJS/Runtime/Intl/DateTimeFormat.cpp
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@@ -1492,15 +1492,14 @@ ThrowCompletionOr<Array*> format_date_time_range_to_parts(GlobalObject& global_o
}
// 11.1.14 ToLocalTime ( t, calendar, timeZone ), https://tc39.es/ecma402/#sec-tolocaltime
ThrowCompletionOr<LocalTime> to_local_time(GlobalObject& global_object, double time, StringView calendar, [[maybe_unused]] StringView time_zone)
ThrowCompletionOr<LocalTime> to_local_time(GlobalObject& global_object, double time, StringView calendar, StringView time_zone)
{
// 1. Assert: Type(t) is Number.
// 2. If calendar is "gregory", then
if (calendar == "gregory"sv) {
// a. Let timeZoneOffset be the value calculated according to LocalTZA(t, true) where the local time zone is replaced with timezone timeZone.
// FIXME: Implement LocalTZA when timezones other than UTC are supported.
double time_zone_offset = 0;
double time_zone_offset = local_tza(time, true, time_zone);
// b. Let tz be the time value t + timeZoneOffset.
double zoned_time = time + time_zone_offset;