diff --git a/client.js b/client.js
index f85f0c56..f5c13ac0 100644
--- a/client.js
+++ b/client.js
@@ -287,7 +287,8 @@ setInterval(function () {
 				for (i = 0; i < inventory.length; i++) {
 					inventoryFrame[inventory[i].name] = Number(inventory[i].count);
 				}
-				// console.log("RCONing inventory! " + JSON.stringify(inventoryFrame));
+				inventoryFrame["signal-unixtime"] = Math.floor(Date.now()/1000);
+				console.log("RCONing inventory! " + JSON.stringify(inventoryFrame));
 				client.exec("/silent-command remote.call('clusterio', 'receiveInventory', '" + JSON.stringify(inventoryFrame) + "')");
 			}
 		});
diff --git a/clusterio_0.0.3/control.lua b/clusterio_0.0.3/control.lua
index 3f05eb81..ecc50cf7 100644
--- a/clusterio_0.0.3/control.lua
+++ b/clusterio_0.0.3/control.lua
@@ -446,7 +446,9 @@ function UpdateInvCombinators()
   local fluids = game.fluid_prototypes
   if global.invdata then
     for name,count in pairs(global.invdata) do
-      if fluids[name] then
+      if name == "signal-unixtime" then
+        invframe[#invframe+1] = {count=count,index=#invframe+1,signal={name=name,type="virtual"}}
+      elseif fluids[name] then
         invframe[#invframe+1] = {count=count,index=#invframe+1,signal={name=name,type="fluid"}}
       elseif items[name] then
         invframe[#invframe+1] = {count=count,index=#invframe+1,signal={name=name,type="item"}}
diff --git a/clusterio_0.0.3/data.lua b/clusterio_0.0.3/data.lua
index 6d09fc41..e7744ad9 100644
--- a/clusterio_0.0.3/data.lua
+++ b/clusterio_0.0.3/data.lua
@@ -175,6 +175,13 @@ data:extend{
     subgroup = "virtual-signal-clusterio",
     order = "e[clusterio]-[3localid]"
   },
+  {
+    type = "virtual-signal",
+    name = "signal-unixtime",
+    icon = "__base__/graphics/icons/signal/signal_grey.png",
+    subgroup = "virtual-signal-clusterio",
+    order = "e[clusterio]-[4unixtime]"
+  },
 }
 
 -- TX Combinator