diff --git a/modules/default/clock/clock.js b/modules/default/clock/clock.js
index 2c07e36c..611170f4 100644
--- a/modules/default/clock/clock.js
+++ b/modules/default/clock/clock.js
@@ -79,7 +79,7 @@ Module.register("clock",{
 		if (this.config.displaySeconds) {
 			timeWrapper.appendChild(secondsWrapper);
 		}
-		if (this.config.showPeriod) {
+		if (this.config.showPeriod && this.config.timeFormat !== 24) {
 			timeWrapper.appendChild(periodWrapper);
 		}