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Fix awkward multi-day event date formatting

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Same-month ranges were rendering as e.g. "Sat, Oct 10, 2026 – 11" (full
start date, then a bare trailing day number for the end). Now:
single day "Sat, Oct 17, 2026", same-month range "Oct 10–11, 2026",
cross-month "Oct 30 – Nov 1, 2026", cross-year "Dec 30, 2026 – Jan 2, 2027".

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SBzcNkW7JcYipnAX6HfgmK
This commit is contained in:
mandalore
2026-09-04 16:19:00 -05:00
co-authored by Claude Sonnet 5
parent 40c41fad08
commit 17093e3d25
1 changed files with 19 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
sites/events/src/main.js
+19 -9
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@@ -114,15 +114,25 @@ function esc(s) {
function fmtDateRange(startIso, endIso) {
const start = new Date(startIso);
const opts = { weekday: "short", month: "short", day: "numeric", year: "numeric" };
const startStr = start.toLocaleDateString(undefined, opts);
if (!endIso) return startStr;
const end = new Date(endIso);
if (start.toDateString() === end.toDateString()) return startStr;
const sameMonth = start.getMonth() === end.getMonth() && start.getFullYear() === end.getFullYear();
const endStr = sameMonth
? end.toLocaleDateString(undefined, { day: "numeric" })
: end.toLocaleDateString(undefined, opts);
const end = endIso ? new Date(endIso) : null;
// Single day: "Sat, Oct 17, 2026"
if (!end || start.toDateString() === end.toDateString()) {
return start.toLocaleDateString(undefined, { weekday: "short", month: "short", day: "numeric", year: "numeric" });
}
const sameYear = start.getFullYear() === end.getFullYear();
const sameMonth = sameYear && start.getMonth() === end.getMonth();
// Same month: "Oct 10–11, 2026"
if (sameMonth) {
const month = start.toLocaleDateString(undefined, { month: "short" });
return `${month} ${start.getDate()}–${end.getDate()}, ${end.getFullYear()}`;
}
// Different month (or year): "Oct 30 – Nov 1, 2026" / "Dec 30, 2026 – Jan 2, 2027"
const startStr = start.toLocaleDateString(undefined, { month: "short", day: "numeric", year: sameYear ? undefined : "numeric" });
const endStr = end.toLocaleDateString(undefined, { month: "short", day: "numeric", year: "numeric" });
return `${startStr} – ${endStr}`;
}