diff --git a/hydrobot.py b/hydrobot.py
--- a/hydrobot.py
+++ b/hydrobot.py
@@ -12,6 +12,7 @@ from influxdb import InfluxDBClient
 from influxdb import SeriesHelper
 from apscheduler.schedulers.background import BackgroundScheduler
 import PID
+from pytz import timezone
 
 #TODO
 #fix temperature offsets
@@ -147,6 +148,7 @@ class Scheduler:
     def __init__(self, canbus):
         self.canbus = canbus
         self.apscheduler = BackgroundScheduler()
+        self.apscheduler.configure(timezone=timezone('US/Eastern'))
         
     def start(self):
         self.apscheduler.start()
@@ -172,7 +174,7 @@ class Scheduler:
                 if trigger == 'cron':
                     on_job = self.apscheduler.add_job(self.canbus.set_output, trigger, [module, output, 1], day = on_time[0], day_of_week = on_time[1], hour = on_time[2], minute = on_time[3], second = on_time[4])
                     off_job = self.apscheduler.add_job(self.canbus.set_output, trigger, [module, output, 0], day = off_time[0], day_of_week = off_time[1], hour = off_time[2], minute = off_time[3], second = off_time[4])
-                                        
+                    
                     #evalute the current state of the cron trigger and set output on if needed
                     if on_job.next_run_time > off_job.next_run_time:
                         self.canbus.set_output(module, output, 1)