[6.x] Fix date-only index fieldtype shifting across timezones#14602
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jasonvarga merged 2 commits into6.xfrom May 4, 2026
Merged
[6.x] Fix date-only index fieldtype shifting across timezones#14602jasonvarga merged 2 commits into6.xfrom
jasonvarga merged 2 commits into6.xfrom
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Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
When a date field's format has no time component,
Date::preProcessIndexDate()sends the value to the index fieldtype as aY-m-dstring.new Date("2025-12-25")parses that as UTC midnight, andIntl.DateTimeFormatthen renders it in the local browser timezone — so anyone west of UTC saw the previous day in listings.This passes
timeZone: 'UTC'to the formatter whenformat_has_timeis false, so the day stays put. The condition hinges onformat_has_timeonly (matching the data shape produced by the backend); theformat_has_time=true, time_enabled=falsecase still has a real ISO moment baked in, so local TZ formatting remains correct there.Test plan
npx vitest run resources/js/tests/components/fieldtypes/DateIndexFieldtype.test.js— addeddate-only value does not shift across timezonesanddate-only range does not shift across timezones; updated existing TZ-localization tests to setformat_has_time: trueso they continue exercising the with-time TZ shift.🤖 Generated with Claude Code