diff --git a/X10D/src/Int16Extensions/Int16Extensions.cs b/X10D/src/Int16Extensions/Int16Extensions.cs
index 174f708..e340287 100644
--- a/X10D/src/Int16Extensions/Int16Extensions.cs
+++ b/X10D/src/Int16Extensions/Int16Extensions.cs
@@ -17,6 +17,11 @@ namespace X10D
         ///     1970, at 12:00 AM UTC). For Unix times before this date, its value is negative.
         /// </param>
         /// <returns>A date and time value that represents the same moment in time as the Unix time.</returns>
+        /// <exception cref="ArgumentOutOfRangeException">
+        ///     <para><paramref name="value" /> is less than -62,135,596,800,000.</para>
+        ///     -or-
+        ///     <para><paramref name="value" /> is greater than 253,402,300,799,999.</para>
+        /// </exception>
         public static DateTimeOffset FromUnixTimeMilliseconds(this short value)
         {
             return DateTimeOffset.FromUnixTimeMilliseconds(value);
@@ -31,6 +36,11 @@ namespace X10D
         ///     12:00 AM UTC). For Unix times before this date, its value is negative.
         /// </param>
         /// <returns>A date and time value that represents the same moment in time as the Unix time.</returns>
+        /// <exception cref="ArgumentOutOfRangeException">
+        ///     <para><paramref name="value" /> is less than -62,135,596,800.</para>
+        ///     -or-
+        ///     <para><paramref name="value" /> is greater than 253,402,300,799.</para>
+        /// </exception>
         public static DateTimeOffset FromUnixTimeSeconds(this short value)
         {
             return DateTimeOffset.FromUnixTimeSeconds(value);
diff --git a/X10D/src/Int32Extensions/Int32Extensions.cs b/X10D/src/Int32Extensions/Int32Extensions.cs
index db5e36a..f7e66ee 100644
--- a/X10D/src/Int32Extensions/Int32Extensions.cs
+++ b/X10D/src/Int32Extensions/Int32Extensions.cs
@@ -17,6 +17,11 @@ namespace X10D
         ///     1970, at 12:00 AM UTC). For Unix times before this date, its value is negative.
         /// </param>
         /// <returns>A date and time value that represents the same moment in time as the Unix time.</returns>
+        /// <exception cref="ArgumentOutOfRangeException">
+        ///     <para><paramref name="value" /> is less than -62,135,596,800,000.</para>
+        ///     -or-
+        ///     <para><paramref name="value" /> is greater than 253,402,300,799,999.</para>
+        /// </exception>
         public static DateTimeOffset FromUnixTimeMilliseconds(this int value)
         {
             return DateTimeOffset.FromUnixTimeMilliseconds(value);
@@ -31,6 +36,11 @@ namespace X10D
         ///     12:00 AM UTC). For Unix times before this date, its value is negative.
         /// </param>
         /// <returns>A date and time value that represents the same moment in time as the Unix time.</returns>
+        /// <exception cref="ArgumentOutOfRangeException">
+        ///     <para><paramref name="value" /> is less than -62,135,596,800.</para>
+        ///     -or-
+        ///     <para><paramref name="value" /> is greater than 253,402,300,799.</para>
+        /// </exception>
         public static DateTimeOffset FromUnixTimeSeconds(this int value)
         {
             return DateTimeOffset.FromUnixTimeSeconds(value);
diff --git a/X10D/src/Int64Extensions/Int64Extensions.cs b/X10D/src/Int64Extensions/Int64Extensions.cs
index fb32ddb..d5d13bd 100644
--- a/X10D/src/Int64Extensions/Int64Extensions.cs
+++ b/X10D/src/Int64Extensions/Int64Extensions.cs
@@ -17,6 +17,11 @@ namespace X10D
         ///     1970, at 12:00 AM UTC). For Unix times before this date, its value is negative.
         /// </param>
         /// <returns>A date and time value that represents the same moment in time as the Unix time.</returns>
+        /// <exception cref="ArgumentOutOfRangeException">
+        ///     <para><paramref name="value" /> is less than -62,135,596,800,000.</para>
+        ///     -or-
+        ///     <para><paramref name="value" /> is greater than 253,402,300,799,999.</para>
+        /// </exception>
         public static DateTimeOffset FromUnixTimeMilliseconds(this long value)
         {
             return DateTimeOffset.FromUnixTimeMilliseconds(value);
@@ -31,6 +36,11 @@ namespace X10D
         ///     12:00 AM UTC). For Unix times before this date, its value is negative.
         /// </param>
         /// <returns>A date and time value that represents the same moment in time as the Unix time.</returns>
+        /// <exception cref="ArgumentOutOfRangeException">
+        ///     <para><paramref name="value" /> is less than -62,135,596,800.</para>
+        ///     -or-
+        ///     <para><paramref name="value" /> is greater than 253,402,300,799.</para>
+        /// </exception>
         public static DateTimeOffset FromUnixTimeSeconds(this long value)
         {
             return DateTimeOffset.FromUnixTimeSeconds(value);