diff --git a/nix-services/default.nix b/nix-services/default.nix
index 522ca5f..a6a31df 100644
--- a/nix-services/default.nix
+++ b/nix-services/default.nix
@@ -23,6 +23,8 @@ let
     <nixpkgs/nixos/modules/config/users-groups.nix>
     <nixpkgs/nixos/modules/misc/ids.nix>
     <nixpkgs/nixos/modules/misc/assertions.nix>
+    <nixpkgs/nixos/modules/config/timezone.nix>
+
     <nixpkgs/nixos/modules/services/databases/redis.nix>
     <nixpkgs/nixos/modules/services/databases/mysql.nix>
     <nixpkgs/nixos/modules/services/databases/postgresql.nix>
@@ -34,6 +36,7 @@ let
     <nixpkgs/nixos/modules/services/monitoring/statsd.nix>
     <nixpkgs/nixos/modules/services/amqp/rabbitmq.nix>
     <nixpkgs/nixos/modules/services/logging/logstash.nix>
+    #<nixpkgs/nixos/modules/services/misc/bitcoin.nix>
   ];
 
   config = (evalModules {
diff --git a/nix-services/environment.nix b/nix-services/environment.nix
index 489f9a2..d8d5b7f 100644
--- a/nix-services/environment.nix
+++ b/nix-services/environment.nix
@@ -16,6 +16,7 @@ with pkgs.lib;
     system.activationScripts.etc = mkOption {}; # Ignore
     system.build.etc = mkOption {}; # Ignore
     environment.etc = mkOption {}; # Ignore
+    environment.sessionVariables = mkOption {}; # Ignore
 
   };
 
diff --git a/nix-services/systemd.nix b/nix-services/systemd.nix
index a1e6ab3..ce4e102 100644
--- a/nix-services/systemd.nix
+++ b/nix-services/systemd.nix
@@ -45,6 +45,10 @@ in {
       options = [ serviceOptions ];
     }; # TODO make more specific
 
+    systemd.globalEnvironment = mkOption {
+      default = {};
+    };
+
     services.dataPrefix = mkOption {
       default = "/var";
       type = types.path;
@@ -63,7 +67,7 @@ in {
           name = name;
           value = {
             command = pkgs.writeScript "${name}-run" (configToCommand name cfg);
-            environment = cfg.environment;
+            environment = cfg.environment // config.systemd.globalEnvironment;
             path = cfg.path;
             stopsignal = if hasAttr "KillSignal" cfg.serviceConfig then
               substring 3 (stringLength cfg.serviceConfig.KillSignal) cfg.serviceConfig.KillSignal