diff --git a/timetracker.Client/Components/Layout/NavMenu.razor b/timetracker.Client/Components/Layout/NavMenu.razor
index 3fd041b..1b89023 100644
--- a/timetracker.Client/Components/Layout/NavMenu.razor
+++ b/timetracker.Client/Components/Layout/NavMenu.razor
@@ -114,9 +114,17 @@
         }
     }
 
-    private void ClearBadge()
+    private async Task ClearBadge()
     {
         _showVersionBadge = false;
+        try
+        {
+            await JSRuntime.InvokeVoidAsync("localStorage.setItem", "lastSeenVersion", timetracker.Client.Components.Pages.Changelog.LatestVersion);
+        }
+        catch
+        {
+            // Ignored
+        }
     }
 
     private string GetInitials(string? name)
diff --git a/timetracker.Client/Components/Pages/Home.razor b/timetracker.Client/Components/Pages/Home.razor
index be6bebe..5dd8e16 100644
--- a/timetracker.Client/Components/Pages/Home.razor
+++ b/timetracker.Client/Components/Pages/Home.razor
@@ -139,9 +139,30 @@ else
                                 }
                                 else if (!hasData)
                                 {
-                                    <MudChip T="string" Color="Color.Default" Variant="Variant.Outlined" Size="Size.Small">
-                                        Nicht erfasst
-                                    </MudChip>
+                                    <MudStack Row="true" AlignItems="AlignItems.Center" Spacing="1">
+                                        @if (day.IsVacation)
+                                        {
+                                            <MudChip T="string" Color="Color.Info" Variant="Variant.Filled" Size="Size.Small" Style="font-weight:700">
+                                                URLAUB
+                                            </MudChip>
+                                            <MudButton Size="Size.Small" Variant="Variant.Text" Color="Color.Error"
+                                                       OnClick="@(async () => await RemoveVacation(day))"
+                                                       Style="text-transform:none; font-size: 0.75rem;">
+                                                Urlaub entfernen
+                                            </MudButton>
+                                        }
+                                        else
+                                        {
+                                            <MudChip T="string" Color="Color.Default" Variant="Variant.Outlined" Size="Size.Small">
+                                                Nicht erfasst
+                                            </MudChip>
+                                            <MudButton Size="Size.Small" Variant="Variant.Text" Color="Color.Info"
+                                                       OnClick="@(async () => await MarkAsVacation(day))"
+                                                       Style="text-transform:none; font-size: 0.75rem;">
+                                                Als Urlaub eintragen
+                                            </MudButton>
+                                        }
+                                    </MudStack>
                                 }
                             </MudStack>
                         </CardHeaderContent>
@@ -190,7 +211,7 @@ else
                                         <MudDivider Vertical="true" FlexItem="true" Style="height:36px" />
                                         <MudStack Spacing="0">
                                             <MudText Typo="Typo.overline" Color="Color.Secondary">Soll</MudText>
-                                            <MudText Typo="Typo.body1">@FormatTs(TimeSpan.FromHours(_settings.DailyTargetHours))</MudText>
+                                            <MudText Typo="Typo.body1">@FormatTs(TimeSpan.FromHours(GetDailyTargetHours(day)))</MudText>
                                         </MudStack>
                                         <MudDivider Vertical="true" FlexItem="true" Style="height:36px" />
                                         <MudStack Spacing="0">
@@ -224,7 +245,7 @@ else
                         @* ── Fortschrittsbalken ── *@
                         @if (progressPct >= 0)
                         {
-                            <MudTooltip Text="@($"Netto {FormatTs(GetEffectiveNetWork(day) ?? TimeSpan.Zero)} von {FormatTs(TimeSpan.FromHours(_settings.DailyTargetHours))} Soll")">
+                            <MudTooltip Text="@($"Netto {FormatTs(GetEffectiveNetWork(day) ?? TimeSpan.Zero)} von {FormatTs(TimeSpan.FromHours(GetDailyTargetHours(day)))} Soll")">
                                 <MudProgressLinear Value="@Math.Min(progressPct, 100)"
                                                    Color="@(progressPct >= 100 ? Color.Success : Color.Primary)"
                                                    Rounded="true" Class="mt-3" Style="height:6px" />
@@ -378,6 +399,7 @@ else
     private Dictionary<DateOnly, string> _holidays = [];
     private int _holidayYear = -1;
     private bool _showOnboarding;
+    private List<VacationDay> _vacations = [];
 
     private bool IsCurrentWeek => _monday == GetMonday(DateOnly.FromDateTime(DateTime.Today));
 
@@ -428,8 +450,9 @@ else
         }
 
         var dbDaysTask = TrackerService.GetWeekAsync(_userId, _monday);
+        var vacationsTask = TrackerService.GetVacationDaysAsync(_userId, _monday.Year);
 
-        await Task.WhenAll(holidaysTask, dbDaysTask);
+        await Task.WhenAll(holidaysTask, dbDaysTask, vacationsTask);
 
         if (_monday.Year != _holidayYear)
         {
@@ -438,11 +461,14 @@ else
             _holidayYear = _monday.Year;
         }
 
+        _vacations = await vacationsTask;
         var dbDays = await dbDaysTask;
         _days = Enumerable.Range(0, 7).Select(i =>
         {
             var date = _monday.AddDays(i);
-            return DayVm.From(dbDays.FirstOrDefault(d => d.Date == date), date, _userId);
+            var dayVm = DayVm.From(dbDays.FirstOrDefault(d => d.Date == date), date, _userId);
+            dayVm.IsVacation = _vacations.Any(v => v.Date == date);
+            return dayVm;
         }).ToList();
         BuildWeekLabels();
     }
@@ -523,23 +549,36 @@ else
         return day.GrossWork.Value - GetEffectiveBreakTime(day);
     }
 
+    private double GetDailyTargetHours(DayVm day)
+    {
+        var isHoliday = _holidays.ContainsKey(day.Date);
+        var isWorkDay = _settings.IsWorkDay(day.Date.DayOfWeek);
+        if (!isWorkDay || isHoliday || day.IsVacation)
+        {
+            return 0.0;
+        }
+        return _settings.DailyTargetHours;
+    }
+
     private TimeSpan? GetOvertime(DayVm day)
     {
         var net = GetEffectiveNetWork(day);
-        return net.HasValue ? net.Value - TimeSpan.FromHours(_settings.DailyTargetHours) : null;
+        return net.HasValue ? net.Value - TimeSpan.FromHours(GetDailyTargetHours(day)) : null;
     }
 
     private int GetProgressPercent(DayVm day)
     {
         var net = GetEffectiveNetWork(day);
-        if (!net.HasValue || _settings.DailyTargetHours <= 0) return -1;
-        return (int)(net.Value.TotalHours / _settings.DailyTargetHours * 100);
+        var target = GetDailyTargetHours(day);
+        if (!net.HasValue || target <= 0) return -1;
+        return (int)(net.Value.TotalHours / target * 100);
     }
 
     private string GetBorderColor(DayVm day, bool isWorkDay, List<string> errors)
     {
         if (!isWorkDay) return "#CFD8DC";
         if (errors.Count > 0) return "#EF5350";
+        if (day.IsVacation) return "#0EA5E9"; // Cool blue for vacation
         if (!day.Start.HasValue && !day.End.HasValue) return "#B0BEC5";
         if (!GetEffectiveNetWork(day).HasValue) return "#B0BEC5";
         return "#4CAF50";
@@ -610,6 +649,34 @@ else
         return day.Start.Value + target + finalBreak;
     }
 
+    private async Task MarkAsVacation(DayVm day)
+    {
+        var vacation = new VacationDay
+        {
+            UserId = _userId,
+            Date = day.Date,
+            Note = "Über Wochenübersicht eingetragen"
+        };
+        await TrackerService.AddVacationDayAsync(vacation);
+
+        await LoadWeek();
+        _totalOvertime = await TrackerService.GetTotalOvertimeAsync(_userId, _settings);
+        Snackbar.Add($"{day.Date:dd.MM.yyyy} als Urlaub eingetragen.", Severity.Success);
+    }
+
+    private async Task RemoveVacation(DayVm day)
+    {
+        var item = _vacations.FirstOrDefault(v => v.Date == day.Date);
+        if (item != null)
+        {
+            await TrackerService.RemoveVacationDayAsync(_userId, item.Id);
+
+            await LoadWeek();
+            _totalOvertime = await TrackerService.GetTotalOvertimeAsync(_userId, _settings);
+            Snackbar.Add($"Urlaub für {day.Date:dd.MM.yyyy} entfernt.", Severity.Info);
+        }
+    }
+
     private static string FormatTimeSpan(TimeSpan? ts)
     {
         if (!ts.HasValue) return "";
@@ -626,6 +693,7 @@ else
         public TimeSpan? Start { get; set; }
         public TimeSpan? End { get; set; }
         public List<BreakVm> Breaks { get; set; } = [];
+        public bool IsVacation { get; set; }
 
         public TimeSpan? GrossWork =>
             Start.HasValue && End.HasValue && End > Start ? End.Value - Start.Value : null;