Ensure correct timezone is set on filetimes (#45)

Author: mitchcapper

Library/DiscUtils.Btrfs/Base/TimeSpec.cs

@@ -39,11 +39,11 @@ internal class TimeSpec : IByteArraySerializable
     /// </summary>
     public uint Nanoseconds { get; internal set; }
 
-    public DateTimeOffset Value => DateTimeOffset.FromUnixTimeSeconds(Seconds).AddTicks(Nanoseconds / 100);
+    public DateTimeOffset Value => DateTimeOffset.FromUnixTimeSeconds(Seconds).AddTicks(Nanoseconds / 100).UtcDateTime;
 
     public int Size => Length;
 
-    public DateTimeOffset DateTime => DateTimeOffset.FromUnixTimeSeconds(Seconds).AddTicks(Nanoseconds / 100);
+    public DateTimeOffset DateTime => DateTimeOffset.FromUnixTimeSeconds(Seconds).AddTicks(Nanoseconds / 100).UtcDateTime;
 
     public int ReadFrom(ReadOnlySpan<byte> buffer)
     {

Library/DiscUtils.Core/Archives/TarHeader.cs

@@ -75,7 +75,7 @@ public TarHeader(ReadOnlySpan<byte> buffer)
         OwnerId = (int)OctalToLong(ReadNullTerminatedString(buffer.Slice(108, 8)));
         GroupId = (int)OctalToLong(ReadNullTerminatedString(buffer.Slice(116, 8)));
         FileLength = ParseFileLength(buffer.Slice(124, 12));
-        ModificationTime = DateTimeOffset.FromUnixTimeSeconds((uint)OctalToLong(ReadNullTerminatedString(buffer.Slice(136, 12))));
+        ModificationTime = DateTimeOffset.FromUnixTimeSeconds((uint)OctalToLong(ReadNullTerminatedString(buffer.Slice(136, 12)))).UtcDateTime;
         CheckSum = (int)OctalToLong(ReadNullTerminatedString(buffer.Slice(148, 8)));
         FileType = (TarFileType)buffer[156];
         LinkName = latin1Encoding.GetString(ReadNullTerminatedString(buffer.Slice(157, 100)));
@@ -93,8 +93,8 @@ public TarHeader(ReadOnlySpan<byte> buffer)
             FileName = $"{latin1Encoding.GetString(prefix)}/{FileName}";
         }
 
-        LastAccessTime = DateTimeOffset.FromUnixTimeSeconds((uint)OctalToLong(ReadNullTerminatedString(buffer.Slice(476, 12))));
-        CreationTime = DateTimeOffset.FromUnixTimeSeconds((uint)OctalToLong(ReadNullTerminatedString(buffer.Slice(488, 12))));
+        LastAccessTime = DateTimeOffset.FromUnixTimeSeconds((uint)OctalToLong(ReadNullTerminatedString(buffer.Slice(476, 12)))).UtcDateTime;
+        CreationTime = DateTimeOffset.FromUnixTimeSeconds((uint)OctalToLong(ReadNullTerminatedString(buffer.Slice(488, 12)))).UtcDateTime;
     }
 
     public static bool IsValid(ReadOnlySpan<byte> buffer)

Library/DiscUtils.Ext/File.cs

@@ -48,21 +48,21 @@ public File(Context context, uint inodeNum, Inode inode)
 
     public DateTime LastAccessTimeUtc
     {
-        get => DateTimeOffset.FromUnixTimeSeconds(Inode.AccessTime).DateTime;
+        get => DateTimeOffset.FromUnixTimeSeconds(Inode.AccessTime).UtcDateTime;
 
         set => throw new NotImplementedException();
     }
 
     public DateTime LastWriteTimeUtc
     {
-        get => DateTimeOffset.FromUnixTimeSeconds(Inode.ModificationTime).DateTime;
+        get => DateTimeOffset.FromUnixTimeSeconds(Inode.ModificationTime).UtcDateTime;
 
         set => throw new NotImplementedException();
     }
 
     public DateTime CreationTimeUtc
     {
-        get => DateTimeOffset.FromUnixTimeSeconds(Inode.CreationTime).DateTime;
+        get => DateTimeOffset.FromUnixTimeSeconds(Inode.CreationTime).UtcDateTime;
 
         set => throw new NotImplementedException();
     }
@@ -114,4 +114,4 @@ private static FileAttributes FromMode(uint mode)
     {
         return Utilities.FileAttributesFromUnixFileType((UnixFileType)((mode >> 12) & 0xF));
     }
-}
+}

Library/DiscUtils.Lvm/Metadata.cs

@@ -128,7 +128,7 @@ internal static DateTime ParseDateTimeValue(ReadOnlySpan<char> value)
             return DateTime.MaxValue;
         }
 
-        return DateTimeOffset.FromUnixTimeSeconds((long)numeric).DateTime;
+        return DateTimeOffset.FromUnixTimeSeconds((long)numeric).UtcDateTime;
     }
 
     internal static ulong ParseNumericValue(ReadOnlySpan<char> value)

Library/DiscUtils.SquashFs/Inode.cs

@@ -51,7 +51,7 @@ public virtual int ReadFrom(ReadOnlySpan<byte> buffer)
         Mode = EndianUtilities.ToUInt16LittleEndian(buffer.Slice(2));
         UidKey = EndianUtilities.ToUInt16LittleEndian(buffer.Slice(4));
         GidKey = EndianUtilities.ToUInt16LittleEndian(buffer.Slice(6));
-        ModificationTime = DateTimeOffset.FromUnixTimeSeconds(EndianUtilities.ToUInt32LittleEndian(buffer.Slice(8))).DateTime;
+        ModificationTime = DateTimeOffset.FromUnixTimeSeconds(EndianUtilities.ToUInt32LittleEndian(buffer.Slice(8))).UtcDateTime;
         InodeNumber = EndianUtilities.ToUInt32LittleEndian(buffer.Slice(12));
         return 16;
     }

Library/DiscUtils.SquashFs/SuperBlock.cs

@@ -78,7 +78,7 @@ public int ReadFrom(ReadOnlySpan<byte> buffer)
         }
 
         InodesCount = EndianUtilities.ToUInt32LittleEndian(buffer.Slice(4));
-        CreationTime = DateTimeOffset.FromUnixTimeSeconds(EndianUtilities.ToUInt32LittleEndian(buffer.Slice(8))).DateTime;
+        CreationTime = DateTimeOffset.FromUnixTimeSeconds(EndianUtilities.ToUInt32LittleEndian(buffer.Slice(8))).UtcDateTime;
         BlockSize = EndianUtilities.ToUInt32LittleEndian(buffer.Slice(12));
         FragmentsCount = EndianUtilities.ToUInt32LittleEndian(buffer.Slice(16));
         Compression = (SquashFileSystemCompressionKind)EndianUtilities.ToUInt16LittleEndian(buffer.Slice(20));

Library/DiscUtils.Xfs/Inode.cs

@@ -265,7 +265,7 @@ private static DateTime ReadTimestamp(ReadOnlySpan<byte> buffer)
     {
         var seconds = EndianUtilities.ToUInt32BigEndian(buffer);
         var nanoSeconds = EndianUtilities.ToUInt32BigEndian(buffer.Slice(4));
-        return DateTimeOffset.FromUnixTimeSeconds(seconds).AddTicks(nanoSeconds / 100).LocalDateTime;
+        return DateTimeOffset.FromUnixTimeSeconds(seconds).AddTicks(nanoSeconds / 100).UtcDateTime;
     }
 
     void IByteArraySerializable.WriteTo(Span<byte> buffer)