diff --git a/pkgs/desktops/gnome-3/extensions/timepp/default.nix b/pkgs/desktops/gnome-3/extensions/timepp/default.nix
new file mode 100644
index 00000000000..dcc018d1883
--- /dev/null
+++ b/pkgs/desktops/gnome-3/extensions/timepp/default.nix
@@ -0,0 +1,26 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  name = "gnome-shell-extension-timepp-${version}";
+  version = "2018.03.17";
+
+  src = fetchFromGitHub {
+    owner = "zagortenay333";
+    repo = "timepp__gnome";
+    rev = "440cf85dc68d9e6ba876793f13910ee6239622cf";
+    sha256 = "0idsqsii5rvynvj78w2j7xiiz9rrl3384m5mj6bf6rg8vprpfi8v";
+  };
+
+  uuid = "timepp@zagortenay333";
+  installPhase = ''
+    mkdir -p $out/share/gnome-shell/extensions/${uuid}
+    cp -r . $out/share/gnome-shell/extensions/${uuid}
+  '';
+
+  meta = with stdenv.lib; {
+    description = " A todo.txt manager, time tracker, timer, stopwatch, pomodoro, and alarms gnome-shell extension.";
+    homepage = https://github.com/zagortenay333/timepp__gnome;
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ svsdep ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d36d044d39b..fc10a3903e5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19365,6 +19365,7 @@ with pkgs;
     no-title-bar = callPackage ../desktops/gnome-3/extensions/no-title-bar { };
     remove-dropdown-arrows = callPackage ../desktops/gnome-3/extensions/remove-dropdown-arrows { };
     taskwhisperer = callPackage ../desktops/gnome-3/extensions/taskwhisperer { };
+    timepp = callPackage ../desktops/gnome-3/extensions/timepp { };
     topicons-plus = callPackage ../desktops/gnome-3/extensions/topicons-plus { };
   };