diff --git a/src/MaaWpfGui/Extensions/DateTimeExtension.cs b/src/MaaWpfGui/Extensions/DateTimeExtension.cs
index 7e8f25cc26..4878d9ae38 100644
--- a/src/MaaWpfGui/Extensions/DateTimeExtension.cs
+++ b/src/MaaWpfGui/Extensions/DateTimeExtension.cs
@@ -1,4 +1,4 @@
-// <copyright file="DateTimeExtension.cs" company="MaaAssistantArknights">
+// <copyright file="DateTimeExtension.cs" company="MaaAssistantArknights">
 // MaaWpfGui - A part of the MaaCoreArknights project
 // Copyright (C) 2021 MistEO and Contributors
 //
@@ -50,5 +50,10 @@ namespace MaaWpfGui.Extensions
         {
             return dt.ToString("yyyy/MM/dd HH:mm:ss", DateTimeFormatInfo.InvariantInfo);
         }
+
+        public static bool IsAprilFoolsDay(this DateTime dt)
+        {
+            return dt.Month == 4 && dt.Day == 1;
+        }
     }
 }
diff --git a/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs b/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
index 0ddf95dda5..2c874d6c83 100644
--- a/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
@@ -2633,19 +2633,13 @@ namespace MaaWpfGui.ViewModels.UI
             }
         }
 
-        public static bool AprilFoolsDay()
-        {
-            var yjDate = DateTime.UtcNow.ToYJDate();
-            return yjDate.Month == 4 && yjDate.Day == 1;
-        }
-
         /// <summary>
         /// Did you buy wine?
         /// </summary>
         /// <returns>The answer.</returns>
         public bool DidYouBuyWine()
         {
-            if (AprilFoolsDay())
+            if (DateTime.UtcNow.ToYJDate().IsAprilFoolsDay())
             {
                 return true;
             }
diff --git a/src/MaaWpfGui/ViewModels/UI/TaskQueueViewModel.cs b/src/MaaWpfGui/ViewModels/UI/TaskQueueViewModel.cs
index b78ff5f343..146720a62a 100644
--- a/src/MaaWpfGui/ViewModels/UI/TaskQueueViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/UI/TaskQueueViewModel.cs
@@ -306,7 +306,7 @@ namespace MaaWpfGui.ViewModels.UI
             UpdateStageList(true);
             RefreshCustonInfrastPlan();
 
-            if (SettingsViewModel.AprilFoolsDay())
+            if (DateTime.UtcNow.ToYJDate().IsAprilFoolsDay())
             {
                 AddLog(LocalizationHelper.GetString("BuyWineOnAprilFoolsDay"), UiLogColor.Info);
             }