diff --git a/themes/luci-theme-bootstrap/htdocs/luci-static/bootstrap/cascade.css b/themes/luci-theme-bootstrap/htdocs/luci-static/bootstrap/cascade.css
index c1be937697..1b94ad7a1d 100644
--- a/themes/luci-theme-bootstrap/htdocs/luci-static/bootstrap/cascade.css
+++ b/themes/luci-theme-bootstrap/htdocs/luci-static/bootstrap/cascade.css
@@ -589,6 +589,12 @@ select,
 	border-radius: 3px;
 }
 
+@media screen and (min-width: 768px) {
+	#localtime {
+		width: 300px;
+	}
+}
+
 input,
 select,
 .cbi-select,