🌍 新しいカレンダー機能：ローカル時間を表示

yuriy · 2025 年 6 月 23 日午後 1:46

UX: smart format dates

main ← better-format-dates

opened 10:37AM - 13 Jun 25 UTC

This PR overhauls the way event dates are rendered by applying context-aware for…matting rules: * Single-day events only show times when appropriate, hiding “12:00 AM” for events without `endDate`. * Multi-day ranges omit redundant parts (e.g. for the current year) and include weekday/month/day when needed. ### Tests added * Weekday-only ranges (e.g. “Friday → Monday”) * Same-week and same-month spans (omitting year) * Cross-month and cross-year spans (including year where needed) * `Today/Yesterday/Tomorrow` labels with time ranges * Same-day events showing only time ### Impact * Improves readability of event dates across the app * Reduces visual noise by hiding redundant date/time fragments * Ensures consistency with user expectations around relative dates ### Things to clarify * Relative labels (`Yesterday, Today, Tomorrow`) replace literal dates for nearby days. * Timezones are only shown when `showLocalTime` is toggled. ### Discussion https://meta.discourse.org/t/new-calendar-feature-show-local-time/368608/

@nat さん、この機能は何年も前に担当されていたので、お呼び出しします。

github.com/discourse/discourse

FEATURE: Omit showing day when 'to' day is same as 'from' day

main ← date-today

opened 10:08AM - 06 Oct 22 UTC

nattsw

+61 -7

Essentially, introducing this change. Saturday at 2:50 PM -> Saturday at 4:38… PM becomes Saturday at 2:50 PM -> 4:38 PM (Singapore) Also, the displayed dates are shortened when the standalone date is within two days. So despite the 'from' and 'to' date being the same day, it may show 'Saturday' for 'from', and the specific date for the 'to'. This corrects the behaviour. So if the current date and time is Thursday 5PM, the 'from' date below is within 2 days, but the 'to' date is not. Saturday at 2:50 PM -> 8 October 2022 at 9:38 PM becomes Saturday at 2:50 PM -> 9:38 PM

from/to の日付/時刻の後に括弧でタイムゾーン名を表示すべきなのはどのような場合ですか？
何を表示することを期待しますか？曜日名 Monday...Sunday または Yesterday/Today/Tomorrow？

私は以下のようにしたいです。
- Yesterday/Today/Tomorrow: -1 day < Today > +1 day の場合
- Monday...Sunday: 現在の週内または -3 days < Today > +3 days の場合
時間の有無は、上記2つのオプションのどちらを表示するかを決定する要因にはすべきではありません。現状は以下のようになっています。
- 時間なし: Monday...Sunday
- 時間あり: Yesterday/Today/Tomorrow

トピック		返信	表示
Show timezone/locale on event dates/times, and show admins how it is determined Feature calendar-and-event	0	208	2024 年 2 月 15 日
Events Plugin :calendar: Plugin	866	88600	2025 年 9 月 12 日
Date line should be human-readable in mails Feature email , calendar-and-event , completed	21	553	2025 年 5 月 29 日
Discourse Calendar (and Event) Plugin official , calendar-and-event , included-in-core	101	54313	2025 年 11 月 12 日
Discourse local dates need better presentation in emails UX	12	2232	2019 年 11 月 19 日

🌍 新しいカレンダー機能：ローカル時間を表示

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