End of US Daylight Savings: What to Expect

Document created by josh_hutchins778263 Employee on Nov 1, 2017Last modified by mike_aronson on Nov 2, 2017
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On Sunday, November 5th at 2:00 AM, clocks in the US will shift back 1 hour. The purpose of this article is to raise awareness in case any issues arise after this transition.


What you Might Experience


Most modern OS’s will automatically adjust machine clocks, however some may not.  AtomSphere logins and the atom communications rely on SSL, which checks to see if the message time matches the registered IP address’ timezone.  Also, atom schedules run based on the machine’s clock.  Here are some common behaviors to watch out for over month of November, whereby it is possible an incorrect machine clock/timezone setting could be causing the issue:  

            -        Trouble logging into the platform

            -        Not seeing any updates in Process Reporting

            -        Processes not running on schedules as expected or there are missed or duplicated schedules

            -        Molecule or Atom Cloud nodes experience inconsistent behaviors (especially if the clock for some nodes are correct and others are not)

            -        Atoms show offline in the platform


The root cause for any of the above could be other reasons, but keep the timezone change in mind just in case.




To resolve any machine clock related issues using an NTP solution, please check the below resources for assistance with your Linux or Windows Machine:


For Windows Machines:


1. Open Cmd.exe as administrator

2. Use command sc start w32time in order to start the Windows Time service

3. Use command w32tm /resync in order to sync your system's clock with the default NTP server

For Ubuntu: 

1. If NTP is not installed, use command sudo apt-get install ntp to install the NTP service

2. After installing, use command sudo ntpdate -s time.nist.gov to sync time


For Redhat  / Cent OS:


1. If NTP is not installed, use command yum install ntp to retrieve the service

2. After installing NTP, start service using command systemctl enable ntpd 

3. After starting service, use command sudo ntpdate -s time.nist.gov to sync time

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