fixed sync

lib/dates.ts

@@ -0,0 +1,37 @@
+const DASH = "—";
+
+const DATE_TIME_FORMATTER = new Intl.DateTimeFormat("en-GB", {
+  timeZone: "UTC",
+  year: "numeric",
+  month: "2-digit",
+  day: "2-digit",
+  hour: "2-digit",
+  minute: "2-digit",
+  second: "2-digit",
+  hour12: false,
+});
+
+const DATE_FORMATTER = new Intl.DateTimeFormat("en-GB", {
+  timeZone: "UTC",
+  year: "numeric",
+  month: "2-digit",
+  day: "2-digit",
+});
+
+function toValidDate(value?: string | Date | null): Date | null {
+  if (!value) return null;
+  const date = value instanceof Date ? value : new Date(value);
+  return Number.isNaN(date.getTime()) ? null : date;
+}
+
+export function formatDateTime(value?: string | Date | null): string {
+  const date = toValidDate(value);
+  if (!date) return DASH;
+  return `${DATE_TIME_FORMATTER.format(date)} UTC`;
+}
+
+export function formatDate(value?: string | Date | null): string {
+  const date = toValidDate(value);
+  if (!date) return DASH;
+  return DATE_FORMATTER.format(date);
+}