diff --git a/src/main.rs b/src/main.rs
index 91e7010..d412ea6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,7 +6,7 @@ use std::{
 
 use chrono::prelude::*;
 
-const TIME_FORMAT: &str = "%H:%M:%S%.6f";
+const TIME_FORMAT: &str = "%H:%M:%S%.3f";
 
 type LogtimesResult = Result<(), IoError>;