diff --git a/src/server/routes/ui/experiments.rs b/src/server/routes/ui/experiments.rs
index b85296f8..1426bf0f 100644
--- a/src/server/routes/ui/experiments.rs
+++ b/src/server/routes/ui/experiments.rs
@@ -138,8 +138,10 @@ fn humanize(duration: Duration) -> String {
         format!("{duration:?}")
     } else if duration.as_secs() < 60 * 60 {
         format!("{} minutes", duration.as_secs() / 60)
-    } else {
+    } else if duration.as_secs() < 60 * 60 * 60 {
         format!("{:.1} hours", duration.as_secs_f64() / 60.0 / 60.0)
+    } else {
+        format!("{:.1} days", duration.as_secs_f64() / 60.0 / 60.0 / 24.0)
     }
 }