diff --git a/Elwig/Windows/DeliveryAdminWindow.xaml.cs b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
index e6fe21e..c60ef5e 100644
--- a/Elwig/Windows/DeliveryAdminWindow.xaml.cs
+++ b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
@@ -278,15 +278,14 @@ namespace Elwig.Windows {
             }
             if (TodayOnlyInput.IsChecked == true) {
                 deliveryQuery = deliveryQuery
-                    .Where(d => (d.DateString == Utils.Today.ToString("yyyy-MM-dd") && d.TimeString.CompareTo("03:00:00") > 0) ||
-                                (d.DateString == Utils.Today.AddDays(1).ToString("yyyy-MM-dd") && d.TimeString.CompareTo("03:00:00") <= 0));
+                    .Where(d => (d.DateString == Utils.Today.ToString("yyyy-MM-dd") && (d.TimeString == null || d.TimeString.CompareTo("03:00:00") > 0)) ||
+                                (d.DateString == Utils.Today.AddDays(1).ToString("yyyy-MM-dd") && (d.TimeString == null || d.TimeString.CompareTo("03:00:00") <= 0)));
                 filterNames.Add(Utils.Today.ToString("dd.MM.yyyy"));
             } else if (AllSeasonsInput.IsChecked == false) {
                 deliveryQuery = deliveryQuery.Where(d => d.Year == SeasonInput.Value);
                 filterNames.Add(SeasonInput.Value.ToString() ?? "");
             }
-            deliveryQuery = deliveryQuery.OrderBy(d => d.DateString).ThenBy(d => d.TimeString);
-            IQueryable<DeliveryPart> dpq = deliveryQuery.SelectMany(d => d.Parts);
+            IQueryable<DeliveryPart> dpq = deliveryQuery.SelectMany(d => d.Parts).OrderBy(p => p.Delivery.DateString).ThenBy(p => p.Delivery.TimeString);
 
             // TODO add filter for:
             //      attributes
@@ -402,8 +401,8 @@ namespace Elwig.Windows {
                 if (filterPartDate.Count > 0) dpq = dpq.Where(p => filterPartDate.Contains(p.Delivery.DateString.Substring(4)));
                 if (filterYearGt > 0) dpq = dpq.Where(p => p.Year >= filterYearGt);
                 if (filterYearLt > 0) dpq = dpq.Where(p => p.Year < filterYearLt);
-                if (filterTimeGt != null) dpq = dpq.Where(p => filterTimeGt.CompareTo(p.Delivery.TimeString) <= 0);
-                if (filterTimeLt != null) dpq = dpq.Where(p => filterTimeLt.CompareTo(p.Delivery.TimeString) > 0);
+                if (filterTimeGt != null) dpq = dpq.Where(p => p.Delivery.TimeString != null && filterTimeGt.CompareTo(p.Delivery.TimeString) <= 0);
+                if (filterTimeLt != null) dpq = dpq.Where(p => p.Delivery.TimeString != null && filterTimeLt.CompareTo(p.Delivery.TimeString) > 0);
                 if (filterVar.Count > 0) dpq = dpq.Where(p => filterVar.Contains(p.SortId));
                 if (filterQual.Count > 0) dpq = dpq.Where(p => filterQual.Contains(p.QualId));
                 if (filterKmwGt > 0) dpq = dpq.Where(p => p.Kmw >= filterKmwGt);
@@ -441,7 +440,7 @@ namespace Elwig.Windows {
                 }
             }
 
-            return (filterNames, dpq.Select(p => p.Delivery).Distinct(), dpq, filter);
+            return (filterNames, dpq.Select(p => p.Delivery).Distinct().OrderBy(d => d.DateString).ThenBy(d => d.TimeString), dpq, filter);
         }
 
         private async Task RefreshDeliveryListQuery(bool updateSort = false) {
@@ -1135,8 +1134,8 @@ namespace Elwig.Windows {
                 day = day.AddDays(-1);
             var lsnrs = await Context.Deliveries
                 .Where(d => d.ZwstId == delivery.ZwstId)
-                .Where(d => (d.DateString == day.ToString("yyyy-MM-dd") && d.TimeString.CompareTo("03:00:00") > 0) ||
-                            (d.DateString == day.AddDays(1).ToString("yyyy-MM-dd") && d.TimeString.CompareTo("03:00:00") <= 0))
+                .Where(d => (d.DateString == day.ToString("yyyy-MM-dd") && (d.TimeString == null || d.TimeString.CompareTo("03:00:00") > 0)) ||
+                            (d.DateString == day.AddDays(1).ToString("yyyy-MM-dd") && (d.TimeString == null || d.TimeString.CompareTo("03:00:00") <= 0)))
                 .Where(d => d.LsNr != delivery.LsNr)
                 .OrderBy(d => d.LsNr)
                 .Select(d => d.LsNr)