bug solve seltet date

src/app/services/Repositorys/Agenda/utils.ts

@@ -180,8 +180,18 @@ export class Utils {
 
   addOneHourToIsoString(isoDateString) {
     let date = new Date(isoDateString);
-  /*   date.setHours(date.getHours()); */
-    let newIsoDateString = date.toISOString();
-    return newIsoDateString;
+ 
+    const tzOffset = -date.getTimezoneOffset(); // in minutes
+    const diff = tzOffset >= 0 ? '+' : '-';
+    const pad = (n: number) => (n < 10 ? '0' : '') + n;
+ 
+    return date.getFullYear() +
+        '-' + pad(date.getMonth() + 1) +
+        '-' + pad(date.getDate()) +
+        'T' + pad(date.getHours()) +
+        ':' + pad(date.getMinutes()) +
+        ':' + pad(date.getSeconds()) +
+        diff + pad(Math.floor(Math.abs(tzOffset) / 60)) +
+        ':' + pad(Math.abs(tzOffset) % 60);
   }
 }