diff --git a/src/Common/src/CoreLib/Interop/Unix/System.Native/Interop.GetTimestamp.cs b/src/Common/src/CoreLib/Interop/Unix/System.Native/Interop.GetTimestamp.cs
new file mode 100644
index 000000000000..e791807daffd
--- /dev/null
+++ b/src/Common/src/CoreLib/Interop/Unix/System.Native/Interop.GetTimestamp.cs
@@ -0,0 +1,17 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Runtime.InteropServices;
+
+internal static partial class Interop
+{
+    internal static partial class Sys
+    {
+        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_GetTimestampResolution")]
+        internal static extern bool GetTimestampResolution(out long resolution);
+
+        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_GetTimestamp")]
+        internal static extern bool GetTimestamp(out long timestamp);
+    }
+}
diff --git a/src/Common/src/Interop/Unix/System.Native/Interop.GetTimestamp.cs b/src/Common/src/Interop/Unix/System.Native/Interop.GetAbsoluteTime.cs
similarity index 66%
rename from src/Common/src/Interop/Unix/System.Native/Interop.GetTimestamp.cs
rename to src/Common/src/Interop/Unix/System.Native/Interop.GetAbsoluteTime.cs
index a6c9d28054fc..e34baa77a6d3 100644
--- a/src/Common/src/Interop/Unix/System.Native/Interop.GetTimestamp.cs
+++ b/src/Common/src/Interop/Unix/System.Native/Interop.GetAbsoluteTime.cs
@@ -8,12 +8,6 @@ internal static partial class Interop
 {
     internal static partial class Sys
     {
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_GetTimestampResolution")]
-        internal static extern bool GetTimestampResolution(out long resolution);
-
-        [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_GetTimestamp")]
-        internal static extern bool GetTimestamp(out long timestamp);
-
         [DllImport(Libraries.SystemNative, EntryPoint = "SystemNative_GetAbsoluteTime")]
         internal static extern bool GetAbsoluteTime(out ulong timestamp);
 
diff --git a/src/System.Diagnostics.Process/src/System.Diagnostics.Process.csproj b/src/System.Diagnostics.Process/src/System.Diagnostics.Process.csproj
index d6cebb976ce1..5d69a2545d38 100644
--- a/src/System.Diagnostics.Process/src/System.Diagnostics.Process.csproj
+++ b/src/System.Diagnostics.Process/src/System.Diagnostics.Process.csproj
@@ -383,8 +383,8 @@
     <Compile Include="$(CommonPath)\System\StringExtensions.cs">
       <Link>Common\System\StringExtensions.cs</Link>
     </Compile>
-    <Compile Include="$(CommonPath)\Interop\Unix\System.Native\Interop.GetTimestamp.cs">
-      <Link>Common\Unix\System.Native\Interop.GetTimestamp.cs</Link>
+    <Compile Include="$(CommonPath)\Interop\Unix\System.Native\Interop.GetAbsoluteTime.cs">
+      <Link>Common\Unix\System.Native\Interop.GetAbsoluteTime.cs</Link>
     </Compile>
   </ItemGroup>
   <ItemGroup Condition="'$(TargetGroup)' == 'netcoreapp' AND '$(TargetsWindows)' == 'true'">
@@ -412,9 +412,6 @@
     <Compile Include="$(CommonPath)\Interop\FreeBSD\Interop.Process.cs">
       <Link>Common\Interop\FreeBSD\Interop.Process.cs</Link>
     </Compile>
-    <Compile Include="$(CommonPath)\Interop\Unix\System.Native\Interop.GetTimestamp.cs">
-      <Link>Common\Unix\System.Native\Interop.GetTimestamp.cs</Link>
-    </Compile>
     <Compile Include="$(CommonPath)\CoreLib\Interop\Unix\System.Native\Interop.Stat.cs">
       <Link>Common\Unix\System.Native\Interop.Stat.cs</Link>
     </Compile>
diff --git a/src/System.Runtime.Extensions/src/System.Runtime.Extensions.csproj b/src/System.Runtime.Extensions/src/System.Runtime.Extensions.csproj
index 0e607a8f3b7e..63153898514c 100644
--- a/src/System.Runtime.Extensions/src/System.Runtime.Extensions.csproj
+++ b/src/System.Runtime.Extensions/src/System.Runtime.Extensions.csproj
@@ -219,7 +219,7 @@
     <Compile Include="$(CommonPath)\CoreLib\Interop\Unix\System.Native\Interop.GetHostName.cs">
       <Link>Common\Interop\Unix\System.Native\Interop.GetHostName.cs</Link>
     </Compile>
-    <Compile Include="$(CommonPath)\Interop\Unix\System.Native\Interop.GetTimestamp.cs">
+    <Compile Include="$(CommonPath)\CoreLib\Interop\Unix\System.Native\Interop.GetTimestamp.cs">
       <Link>Common\Interop\Unix\System.Native\Interop.GetTimestamp.cs</Link>
     </Compile>
     <Compile Include="$(CommonPath)\CoreLib\Interop\Unix\System.Native\Interop.GetPwUid.cs">