diff --git a/manifest.dhall b/manifest.dhall
index 5ccb311903b2e589c4ea56acf7be2409cbf146e0..cba2360d6cb921d818937e172ce5aeb3a8efcb12 100644
--- a/manifest.dhall
+++ b/manifest.dhall
@@ -380,6 +380,7 @@ in  [ callHackage "Cabal" "3.8.1.0"
     , callHackage "validity-primitive" "0.0.0.1"
     , callHackage "validity-scientific" "0.2.0.3"
     , callHackage "validity-text" "0.3.1.3"
+    , callHackage "validity-time" "0.5.0.0"
     , callHackage "vault" "0.3.1.5"
     , callHackage "vector" "0.13.0.0"
     , callHackage "vector-algorithms" "0.9.0.1"
diff --git a/overlay.nix b/overlay.nix
index e26ed2feec6c8792150602c633e7601a41b945a5..c26f3b909b95055d0733453ddb045db1b9fa208a 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -497,6 +497,8 @@ final: prev: with pkgs.haskell.lib; {
 
     validity-text = prev.callPackage (./pkgs/validity-text.nix) { };
 
+    validity-time = prev.callPackage (./pkgs/validity-time.nix) { };
+
     vault = prev.callPackage (./pkgs/vault.nix) { };
 
     vector = prev.callPackage (./pkgs/vector.nix) { };
diff --git a/pkgs/validity-time.nix b/pkgs/validity-time.nix
new file mode 100644
index 0000000000000000000000000000000000000000..bb1c25b1d656029f7db96c751b3b3f74834bb6e9
--- /dev/null
+++ b/pkgs/validity-time.nix
@@ -0,0 +1,14 @@
+{ mkDerivation, base, lib, time, validity }:
+mkDerivation {
+  pname = "validity-time";
+  version = "0.5.0.0";
+  sha256 = "610ab49ee19f81da54072e54468d96dfd00e5f46d29ddbbc63f23498a0d763c6";
+  libraryHaskellDepends = [ base time validity ];
+  doHaddock = false;
+  jailbreak = true;
+  doCheck = false;
+  hyperlinkSource = false;
+  homepage = "https://github.com/NorfairKing/validity#readme";
+  description = "Validity instances for time";
+  license = lib.licenses.mit;
+}
\ No newline at end of file