🔨 Use DateTimeOffset to convert Unix timestamps

X10D/DateTimeExtensions.cs

@@ -11,11 +11,6 @@
     /// </summary>
     public static class DateTimeExtensions
     {
-        /// <summary>
-        /// Represents the Unix epoch - midnight on January 1, 1970.
-        /// </summary>
-        public static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0);
-
         /// <summary>
         /// Calculates someone's age based on a date of birth.
         /// </summary>
@@ -146,8 +141,8 @@
         /// <returns>Returns a Unix timestamp representing the provided <see cref="DateTime"/>.</returns>
         public static long ToUnixTimeStamp(this DateTime time, bool useMillis = false)
         {
-            TimeSpan difference = time - UnixEpoch;
+            DateTimeOffset offset = time;
-            return (long)(useMillis ? difference.TotalMilliseconds : difference.TotalSeconds);
+            return useMillis ? offset.ToUnixTimeSeconds() : offset.ToUnixTimeMilliseconds();
         }
 
         /// <summary>

X10D/DoubleExtensions.cs

@@ -31,19 +31,6 @@
         public static double DegreesToRadians(this double angle) =>
             Math.PI * angle / 180.0;
 
-        /// <summary>
-        /// Converts the <see cref="Double"/> to a <see cref="DateTime"/> treating it as a Unix timestamp.
-        /// </summary>
-        /// <param name="timestamp">The timestamp.</param>
-        /// <param name="isMillis">Optional. Whether or not the input value should be treated as milliseconds. Defaults
-        /// to <see langword="false"/>.</param>
-        /// <returns>Returns a <see cref="DateTime"/> representing <paramref name="timestamp"/> seconds since the Unix
-        /// epoch.</returns>
-        public static DateTime FromUnixTimestamp(this double timestamp, bool isMillis = false) =>
-            isMillis
-                ? DateTimeExtensions.UnixEpoch.AddMilliseconds(timestamp)
-                : DateTimeExtensions.UnixEpoch.AddSeconds(timestamp);
-
         /// <summary>
         /// Converts the <see cref="Double"/> to a <see cref="Byte"/>[].
         /// </summary>

X10D/Int64Extensions.cs

@@ -82,8 +82,14 @@
         /// to <see langword="false"/>.</param>
         /// <returns>Returns a <see cref="DateTime"/> representing <paramref name="timestamp"/> seconds since the Unix
         /// epoch.</returns>
-        public static DateTime FromUnixTimestamp(this long timestamp, bool isMillis = false) =>
+        public static DateTime FromUnixTimestamp(this long timestamp, bool isMillis = false)
-            ((double)timestamp).FromUnixTimestamp(isMillis);
+        {
+            DateTimeOffset offset = isMillis
+                ? DateTimeOffset.FromUnixTimeMilliseconds(timestamp)
+                : DateTimeOffset.FromUnixTimeSeconds(timestamp);
+
+            return offset.DateTime;
+        }
 
         /// <summary>
         /// Converts the <see cref="UInt64"/> to a <see cref="Byte"/>[].

X10D/SingleExtensions.cs

@@ -31,17 +31,6 @@
         public static float DegreesToRadians(this float angle) =>
             (float)((double)angle).DegreesToRadians();
 
-        /// <summary>
-        /// Converts the <see cref="Single"/> to a <see cref="DateTime"/> treating it as a Unix timestamp.
-        /// </summary>
-        /// <param name="timestamp">The timestamp.</param>
-        /// <param name="isMillis">Optional. Whether or not the input value should be treated as milliseconds. Defaults
-        /// to <see langword="false"/>.</param>
-        /// <returns>Returns a <see cref="DateTime"/> representing <paramref name="timestamp"/> seconds since the Unix
-        /// epoch.</returns>
-        public static DateTime FromUnixTimestamp(this float timestamp, bool isMillis = false) =>
-            ((double)timestamp).FromUnixTimestamp(isMillis);
-
         /// <summary>
         /// Converts the <see cref="Single"/> to a <see cref="Byte"/>[].
         /// </summary>