diff --git a/daemon/lua/sandbox.lua b/daemon/lua/sandbox.lua
index 0bad92a7045b489dd9a2a80e5d61ca6bf7a5bb88..f9003d3c7cb477c6bc38adb5b2c4b758818fd4e0 100644
--- a/daemon/lua/sandbox.lua
+++ b/daemon/lua/sandbox.lua
@@ -2,6 +2,10 @@
 kB = 1024
 MB = 1024*1024
 GB = 1024*1024
+-- Time
+sec = 1000
+minute = 60 * sec
+hour = 60 * minute
 
 -- Function aliases
 -- `env.VAR returns os.getenv(VAR)`