diff --git a/PKHeX.Core/Saves/Substructures/Gen9/ZA/DonutPocket9a.cs b/PKHeX.Core/Saves/Substructures/Gen9/ZA/DonutPocket9a.cs
index a3d12916d..7547509d4 100644
--- a/PKHeX.Core/Saves/Substructures/Gen9/ZA/DonutPocket9a.cs
+++ b/PKHeX.Core/Saves/Substructures/Gen9/ZA/DonutPocket9a.cs
@@ -92,7 +92,7 @@ private static void ApplyTimestampNow(Donut9a entry, int bias = 0)
         if (bias != 0) // some fudge factor to differentiate donuts made on the same millisecond
             now = now.AddMilliseconds(bias);
         var ticks = (ulong)(now - Donut9a.Epoch).TotalMilliseconds;
-        entry.MillisecondsSince1900 = ticks;
+        entry.MillisecondsSince1970 = ticks;
         entry.DateTime1900.Timestamp = now;
     }
 
@@ -576,10 +576,10 @@ public static bool TryGetFlavorName(ulong hash, [NotNullWhen(true)] out string?
     public const int Size = 0x48;
     public Span<byte> Data => Raw.Span;
 
-    public static DateTime Epoch => new(1900, 1, 1, 0, 0, 0, DateTimeKind.Local);
+    public static DateTime Epoch => new(1970, 1, 1, 0, 0, 0, DateTimeKind.Local);
 
     /*
-    0x00    u64 MillisecondsSince1900
+    0x00    u64 MillisecondsSince1970
        
     0x08    u8 Stars
     0x09    u8 LevelBoost
@@ -604,9 +604,9 @@ public static bool TryGetFlavorName(ulong hash, [NotNullWhen(true)] out string?
     */
 
     /// <summary>
-    /// Timestamp the donut was created, in milliseconds since January 1, 1900.
+    /// Timestamp the donut was created, in milliseconds since January 1, 1970.
     /// </summary>
-    public ulong MillisecondsSince1900 { get => ReadUInt64LittleEndian(Data); set => WriteUInt64LittleEndian(Data, value); }
+    public ulong MillisecondsSince1970 { get => ReadUInt64LittleEndian(Data); set => WriteUInt64LittleEndian(Data, value); }
 
     public byte Stars { get => Data[0x08]; set => Data[0x08] = value; }
     public byte LevelBoost { get => Data[0x09]; set => Data[0x09] = value; }
@@ -638,7 +638,7 @@ public static bool TryGetFlavorName(ulong hash, [NotNullWhen(true)] out string?
     /// Alternate date storage format for the donut creation time.
     /// </summary>
     /// <remarks>
-    /// <see cref="MillisecondsSince1900"/> is the source of truth; this value should be kept in sync via <see cref="UpdateDateTime"/>.
+    /// <see cref="MillisecondsSince1970"/> is the source of truth; this value should be kept in sync via <see cref="UpdateDateTime"/>.
     /// </remarks>
     public Epoch1900DateTimeValue DateTime1900 => new(Raw[0x20..0x28]);
 
@@ -649,17 +649,17 @@ public static bool TryGetFlavorName(ulong hash, [NotNullWhen(true)] out string?
     public ulong Reserved { get => ReadUInt64LittleEndian(Data[0x40..]); set => WriteUInt64LittleEndian(Data[0x40..], value); }
 
     /// <summary>
-    /// Updates the <see cref="DateTime1900"/> value based on the stored <see cref="MillisecondsSince1900"/>.
+    /// Updates the <see cref="DateTime1900"/> value based on the stored <see cref="MillisecondsSince1970"/>.
     /// </summary>
     /// <remarks>
-    /// The values should always mirror each other, but their storage formats differ. Treat <see cref="MillisecondsSince1900"/> as the main source of truth.
+    /// The values should always mirror each other, but their storage formats differ. Treat <see cref="MillisecondsSince1970"/> as the main source of truth.
     /// </remarks>
-    public void UpdateDateTime() => DateTime1900.Timestamp = Epoch.AddMilliseconds(MillisecondsSince1900);
+    public void UpdateDateTime() => DateTime1900.Timestamp = Epoch.AddMilliseconds(MillisecondsSince1970);
 
     /// <summary>
-    /// A non-zero <see cref="MillisecondsSince1900"/> indicates that this donut slot is occupied. A zero-value with non-zero flavors/berries is invalid (and causes display glitches in-game).
+    /// A non-zero <see cref="MillisecondsSince1970"/> indicates that this donut slot is occupied. A zero-value with non-zero flavors/berries is invalid (and causes display glitches in-game).
     /// </summary>
-    public bool IsEmpty => MillisecondsSince1900 != 0;
+    public bool IsEmpty => MillisecondsSince1970 != 0;
 
     /// <summary>
     /// Count of flavor perks granted by this donut.
diff --git a/PKHeX.WinForms/Subforms/Save Editors/Gen9/DonutEditor9a.Designer.cs b/PKHeX.WinForms/Subforms/Save Editors/Gen9/DonutEditor9a.Designer.cs
index 979e4bf99..2cec9536b 100644
--- a/PKHeX.WinForms/Subforms/Save Editors/Gen9/DonutEditor9a.Designer.cs	
+++ b/PKHeX.WinForms/Subforms/Save Editors/Gen9/DonutEditor9a.Designer.cs	
@@ -681,7 +681,7 @@ private void InitializeComponent()
             // 
             // CAL_Date
             // 
-            CAL_Date.CustomFormat = "hh:mm:ss ddd MMMM dd, yyyy";
+            CAL_Date.CustomFormat = "ddd MMMM dd, yyyy hh:mm:ss";
             CAL_Date.Format = System.Windows.Forms.DateTimePickerFormat.Custom;
             CAL_Date.Location = new System.Drawing.Point(106, 170);
             CAL_Date.Margin = new System.Windows.Forms.Padding(0, 0, 0, 1);
diff --git a/PKHeX.WinForms/Subforms/Save Editors/Gen9/DonutEditor9a.cs b/PKHeX.WinForms/Subforms/Save Editors/Gen9/DonutEditor9a.cs
index f431ffb57..4f08d0392 100644
--- a/PKHeX.WinForms/Subforms/Save Editors/Gen9/DonutEditor9a.cs	
+++ b/PKHeX.WinForms/Subforms/Save Editors/Gen9/DonutEditor9a.cs	
@@ -180,7 +180,7 @@ public void LoadDonut(Donut9a donut)
             CAL_Date.Value = Epoch;
         }
 
-        TB_Milliseconds.Text = donut.MillisecondsSince1900.ToString();
+        TB_Milliseconds.Text = donut.MillisecondsSince1970.ToString();
 
         Loading = false;
         return;
@@ -231,7 +231,7 @@ public void SaveDonut()
                 donut.ClearDateTime();
             }
         }
-        donut.MillisecondsSince1900 = ulong.TryParse(TB_Milliseconds.Text, out var unk) ? unk : 0;
+        donut.MillisecondsSince1970 = ulong.TryParse(TB_Milliseconds.Text, out var unk) ? unk : 0;
     }
 
     private static void LoadDonutFlavorHash(ComboBox cb, ulong flavorHash)