diff --git a/web/src/lib/date.ts b/web/src/lib/date.ts
index 22048a1..04081ee 100644
--- a/web/src/lib/date.ts
+++ b/web/src/lib/date.ts
@@ -68,7 +68,9 @@ export function isConsecutiveDays(a: Date, b: Date): boolean {
 
 export function groupConsecutiveDates(dates: string[]): string[][] {
   const groupedDates: string[][] = [];
-  const uniqueDays = unique(dates.map(date => format(startOfDay(toLocalTime(date)), 'yyyy-MM-dd')))
+  const uniqueDays = unique(
+    dates.map((date) => format(startOfDay(toLocalTime(date)), "yyyy-MM-dd"))
+  ).sort();
   let group: string[] = [];
 
   for (let i = 0; i < uniqueDays.length; i++) {
@@ -101,7 +103,7 @@ export function formatDateRange(dates: string[]): string {
 
   if (firstDate.getMonth() === lastDate.getMonth()) {
     // same month
-    return `${firstDate.getDay()}.—${lastDate.getDay()}. ${formatDate(
+    return `${firstDate.getDate()}.—${lastDate.getDate()}. ${formatDate(
       firstDate,
       "MMMM"
     )}`;