Describe the bug
Temporal.ZonedDateTime.p.getTimeZoneTransition should return future time when a time zone offset changes, but currently boa doesn't do for few cases.
To Reproduce
Steps to reproduce the issue, or JavaScript code that causes this failure.
const errors = {
'same time': [],
'past time': [],
'same offset': [],
};
const edgeCases = [
// `getTimeZoneTransition` returns ZonedDateTime with same offset
"2023-03-25T23:00:00-02:00[America/Godthab]",
"2015-03-08T03:00:00-04:00[America/Grand_Turk]",
"2006-04-02T03:00:00-05:00[America/Resolute]",
"2023-10-29T00:00:00-01:00[America/Scoresbysund]",
"1996-01-01T02:00:00+01:00[Europe/Lisbon]",
// `getTimeZoneTransition('next')` returns same or past time
"2011-03-13T01:01:00-03:00[America/Goose_Bay]",
"2011-03-13T02:59:59-03:00[America/Goose_Bay]",
"2011-03-13T01:01:00-02:30[America/St_Johns]",
"2007-03-11T03:00:00-05:00[America/Indiana/Petersburg]",
"2007-11-04T00:59:59-05:00[America/Indiana/Petersburg]",
"2007-03-11T03:00:00-05:00[America/Indiana/Vincennes]",
"2010-03-14T03:00:00-06:00[America/North_Dakota/Beulah]",
"2022-03-13T03:00:00-06:00[America/Ojinaga]",
"2009-10-04T03:00:00+11:00[Antarctica/Macquarie]",
"1998-03-29T01:00:00+03:00[Asia/Nicosia]",
"1996-10-26T23:00:00+02:00[Europe/Bucharest]",
"1996-10-26T23:00:00+02:00[Europe/Chisinau]",
"1996-03-31T03:00:00+03:00[Europe/Kiev]",
"1996-10-26T23:00:00+02:00[Europe/Sofia]",
"1999-03-28T03:00:00+02:00[Europe/Vilnius]",
"2015-10-04T01:30:00+11:00[Pacific/Norfolk]",
];
for (const s of edgeCases) {
const zdt = Temporal.ZonedDateTime.from(s);
const transition = zdt.getTimeZoneTransition("next");
if (Temporal.ZonedDateTime.compare(transition, zdt) === 0) {
errors['same time'].push(s);
} else if (Temporal.ZonedDateTime.compare(transition, zdt) === -1) {
errors['past time'].push(s);
} else if (transition.offsetNanoseconds === zdt.offsetNanoseconds) {
errors['same offset'].push(s);
}
}
errors // { 'same time': Array(14), 'past time': Array(2), 'same offset': Array(5) }Expected behavior
Explain what you expected to happen, and what is happening instead.
errors should be empty ({ 'same time': [], 'past time': [], 'same offset': [] })
spec: https://tc39.es/proposal-temporal/#sec-temporal-getnamedtimezonenexttransition
Build environment (please complete the following information):
official playground (https://boajs.dev/playground)
Additional context
Add any other context about the problem here.
issue on Chromium: https://issues.chromium.org/issues/443776749 but it's fixed now on latest Chrome Canary. I guess https://chromium-review.googlesource.com/c/v8/v8/+/6933690 fixed this, so perhaps only specific time zone providers are affected (not confirmed though)
Describe the bug
Temporal.ZonedDateTime.p.getTimeZoneTransitionshould return future time when a time zone offset changes, but currently boa doesn't do for few cases.To Reproduce
Steps to reproduce the issue, or JavaScript code that causes this failure.
Expected behavior
Explain what you expected to happen, and what is happening instead.
errorsshould be empty ({ 'same time': [], 'past time': [], 'same offset': [] })spec: https://tc39.es/proposal-temporal/#sec-temporal-getnamedtimezonenexttransition
Build environment (please complete the following information):
official playground (https://boajs.dev/playground)
Additional context
Add any other context about the problem here.
issue on Chromium: https://issues.chromium.org/issues/443776749 but it's fixed now on latest Chrome Canary. I guess https://chromium-review.googlesource.com/c/v8/v8/+/6933690 fixed this, so perhaps only specific time zone providers are affected (not confirmed though)