1 files changed, 18 insertions, 0 deletions
diff --git a/src/utils/datetime.ts b/src/utils/datetime.ts
index c32fde0..be2ce08 100644
--- a/src/utils/datetime.ts
+++ b/src/utils/datetime.ts
@@ -1,3 +1,5 @@
+import { createRanges } from "./iterator.ts";
+
 export function toIso8601Full(date: Date): string {
   const yearN = date.getFullYear();
   const isNegativeYear = yearN <= 0;
@@ -66,3 +68,19 @@ export function getRelativeTimeUnit(
   if (Math.abs(minutes) >= 1) return [Math.round(minutes), "minute"];
   return [Math.round(seconds), "second"];
 }
+
+export function listDates(dates: Date[], { date, locale, list }: {
+  date: Intl.DateTimeFormatOptions;
+  locale: Intl.LocalesArgument;
+  list: Intl.ListFormatOptions;
+}): string {
+  const formatter = new Intl.DateTimeFormat(locale, date);
+  return new Intl.ListFormat(locale, list).format(dates.map(formatter.format));
+}
+
+export function listYearsWithRanges(years: number[], { locale, list }: {
+  locale: Intl.LocalesArgument;
+  list: Intl.ListFormatOptions;
+}): string {
+  return new Intl.ListFormat(locale, list).format(createRanges(years));
+}