3 files changed, 49 insertions, 0 deletions
diff --git a/pkgs/development/libraries/haskell/tz/default.nix b/pkgs/development/libraries/haskell/tz/default.nix
new file mode 100644
index 000000000000..5239578f05a6
--- /dev/null
+++ b/pkgs/development/libraries/haskell/tz/default.nix
@@ -0,0 +1,23 @@
+{ cabal, binary, bindingsPosix, deepseq, HUnit, QuickCheck
+, testFramework, testFrameworkHunit, testFrameworkQuickcheck2
+, testFrameworkTh, time, tzdata, vector
+, pkgs_tzdata
+}:
+
+cabal.mkDerivation (self: {
+  pname = "tz";
+  version = "0.0.0.5";
+  sha256 = "03s5vs08dj3r7rq78ncya6x6dazvr93gfylyynwybpai09l2y89v";
+  buildDepends = [ binary deepseq time tzdata vector ];
+  preCheck = "export TZDIR=${pkgs_tzdata}/share/zoneinfo";
+  testDepends = [
+    bindingsPosix HUnit QuickCheck testFramework testFrameworkHunit
+    testFrameworkQuickcheck2 testFrameworkTh time tzdata
+  ];
+  meta = {
+    homepage = "https://github.com/nilcons/haskell-tz";
+    description = "Efficient time zone handling";
+    license = self.stdenv.lib.licenses.asl20;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/tzdata/default.nix b/pkgs/development/libraries/haskell/tzdata/default.nix
new file mode 100644
index 000000000000..10d4f87141d9
--- /dev/null
+++ b/pkgs/development/libraries/haskell/tzdata/default.nix
@@ -0,0 +1,20 @@
+{ cabal, filemanip, filepath, HUnit, MissingH, testFramework
+, testFrameworkHunit, testFrameworkTh, vector
+}:
+
+cabal.mkDerivation (self: {
+  pname = "tzdata";
+  version = "0.1.20140324.0";
+  sha256 = "19cw8wag2d5jx9dxia3gr8qjr3bh77a2kp7ksyqp58xxmvmsqdn4";
+  buildDepends = [ vector ];
+  testDepends = [
+    filemanip filepath HUnit MissingH testFramework testFrameworkHunit
+    testFrameworkTh
+  ];
+  meta = {
+    homepage = "https://github.com/nilcons/haskell-tzdata";
+    description = "Time zone database (as files and as a module)";
+    license = self.stdenv.lib.licenses.asl20;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 0605f81d0a23..2a97b83efec6 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2624,6 +2624,12 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   typeLevelNaturalNumber = callPackage ../development/libraries/haskell/type-level-natural-number {};
 
+  tz = callPackage ../development/libraries/haskell/tz {
+    pkgs_tzdata = pkgs.tzdata;
+  };
+
+  tzdata = callPackage ../development/libraries/haskell/tzdata {};
+
   unbound = callPackage ../development/libraries/haskell/unbound {};
 
   unboundedDelays = callPackage ../development/libraries/haskell/unbounded-delays {};