diff --git a/lib/mqtt/mqttClient.js b/lib/mqtt/mqttClient.js
index baab881..df6a7a3 100644
--- a/lib/mqtt/mqttClient.js
+++ b/lib/mqtt/mqttClient.js
@@ -87,7 +87,8 @@ const mqttClient = function(events) {
 
     let n;
     const now = new Date;
-    const mod = 900000 - (now.getTime() % 900000);
+    //const mod = 900000 - (now.getTime() % 900000);
+    const mod = 120000 - (now.getTime() % 120000);
     const day = now.getDay();
     const daytimeLimits = {low: 27900000, high: 63000000};
     const nowMS = (now.getHours() * 3600000) + (now.getMinutes() * 60000);