diff --git a/src/main.rs b/src/main.rs
index 2b6c09a..fccc68d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,6 +16,7 @@
 
 // TODO Enable warn(unreachable_pub)?
 // TODO Remove unnecessary Debug impls and compare compile times
+// TODO Time zones other than UTC
 
 mod config;
 mod euph;