diff --git a/DP3TApp/Logic/CheckIn/ProblematicEventsManager.swift b/DP3TApp/Logic/CheckIn/ProblematicEventsManager.swift
index 7258acf3..d67d8d6e 100644
--- a/DP3TApp/Logic/CheckIn/ProblematicEventsManager.swift
+++ b/DP3TApp/Logic/CheckIn/ProblematicEventsManager.swift
@@ -18,7 +18,7 @@ class ProblematicEventsManager {
     private let dateFormatter: DateFormatter = {
         let formatter = DateFormatter()
         formatter.locale = Locale(identifier: "en_US")
-        formatter.dateFormat = "E, dd MMM YYYY HH:mm:ss zzz"
+        formatter.dateFormat = "E, dd MMM yyyy HH:mm:ss zzz"
         return formatter
     }()
 
diff --git a/DP3TApp/Logic/Helpers/DateFormatter.swift b/DP3TApp/Logic/Helpers/DateFormatter.swift
index 4e55e7ff..eebd2d69 100644
--- a/DP3TApp/Logic/Helpers/DateFormatter.swift
+++ b/DP3TApp/Logic/Helpers/DateFormatter.swift
@@ -21,13 +21,13 @@ extension DateFormatter {
 
     private static let dayDateFormatter: DateFormatter = {
         let dateFormatter = DateFormatter()
-        dateFormatter.dateFormat = "dd.MM.YYYY"
+        dateFormatter.dateFormat = "dd.MM.yyyy"
         return dateFormatter
     }()
 
     private static let dayWithMonthFormatter: DateFormatter = {
         let dateFormatter = DateFormatter()
-        dateFormatter.dateFormat = "dd. MMMM YYYY"
+        dateFormatter.dateFormat = "dd. MMMM yyyy"
         return dateFormatter
     }()
 
diff --git a/DP3TApp/Screens/Homescreen/InformBroadcast/CheckInSelection/CheckInSelectionViewController.swift b/DP3TApp/Screens/Homescreen/InformBroadcast/CheckInSelection/CheckInSelectionViewController.swift
index 0e8759be..acd09880 100644
--- a/DP3TApp/Screens/Homescreen/InformBroadcast/CheckInSelection/CheckInSelectionViewController.swift
+++ b/DP3TApp/Screens/Homescreen/InformBroadcast/CheckInSelection/CheckInSelectionViewController.swift
@@ -69,7 +69,7 @@ class CheckInSelectionViewController: NSInformBottomButtonViewController {
         }
 
         let formatter = DateFormatter()
-        formatter.dateFormat = "dd.mm.YYYY"
+        formatter.dateFormat = "dd.mm.yyyy"
 
         checkInSelections = checkIns.compactMap { [weak self] checkIn in
             guard let self = self else { return nil }