Start of week according to locale in SessionsWeekly

src/app/(main)/websites/[websiteId]/sessions/SessionsWeekly.tsx

@@ -10,6 +10,10 @@ export function SessionsWeekly({ websiteId }: { websiteId: string }) {
   const { data, ...props } = useWebsiteSessionsWeekly(websiteId);
   const { dateLocale } = useLocale();
   const { labels, formatMessage } = useMessages();
+  const { weekStartsOn } = dateLocale.options;
+  const daysOfWeek = Array(7)
+    .fill(weekStartsOn)
+    .map((d, i) => (d + i) % 7);
 
   const [, max] = data
     ? data.reduce((arr: number[], hours: number[], index: number) => {
@@ -50,7 +54,9 @@ export function SessionsWeekly({ websiteId }: { websiteId: string }) {
               );
             })}
         </div>
-        {data?.map((day: number[], index: number) => {
+        {data &&
+          daysOfWeek.map((index: number) => {
+            const day = data[index];
             return (
               <div key={index} className={styles.day}>
                 <div className={styles.header}>