feature: the beginnings of chat working

public/js/datetimeutils.js

@@ -0,0 +1,19 @@
+function datetime_to_local(input) {
+	const local_datetime = new Date(input);
+
+	return {
+		long: local_datetime.toLocaleString("en-US", {
+			year: "numeric",
+			month: "long",
+			day: "numeric",
+			hour: "2-digit",
+			minute: "2-digit",
+			hour12: true,
+		}),
+
+		short: local_datetime.toLocaleString("en-US", {
+			timeStyle: "short",
+			hour12: true,
+		}),
+	};
+}