Update app.py

app.py

@@ -33,8 +33,8 @@ def get_time_remaining(last_start_timestamp, run_duration_seconds):
     last_start_dt = parser.isoparse(last_start_timestamp)
     end_run_dt = last_start_dt + timedelta(seconds=run_duration_seconds)
     now_dt = datetime.now(tz=last_start_dt.tzinfo)
-    delta = (end_run_dt - now_dt).total_seconds()
-    return max(delta, 0.0)
+    delta = int((end_run_dt - now_dt).total_seconds())
+    return max(delta, 0)
 
 def get_server(credentials, instance_name):
     service = googleapiclient.discovery.build('compute', 'v1', credentials=credentials)