diff --git a/clock-chime.lua b/clock-chime.lua
new file mode 100644
index 0000000..3244ca1
--- /dev/null
+++ b/clock-chime.lua
@@ -0,0 +1,23 @@
+-- Program that sends a redstone pulse at noon and midnight
+
+-- the side of the computer to output the pulse
+local SIDE = "right"
+
+function pulse ()
+    rs.setOutput(true, SIDE)
+    os.sleep(0.05) -- maybe sleep for a tick?
+    rs.setOutput(false, SIDE)
+end
+
+while true do
+    local timedelta = (os.time("ingame") % 12) * 60 -- all times in seconds
+    local sleep_amt = ((12 * 60) - timedelta) / 2 -- cut the time in half?
+    if timedelta < 1 then
+        pulse()
+        os.sleep(1) -- don't pulse more than once
+    elseif sleep_amt > 1 then
+        os.sleep(sleep_amt)
+    else
+        os.sleep(0.2)
+    end
+end