Idera recommends that you upgrade your SQL Enterprise Job Manager to version 1.1 to avoid issues with DST changes.

SQL Enterprise Job Manager 1.0 will run your jobs properly (on the correct scheduled times) after DST (March 8th, 2015), but the Schedule tab may show your jobs scheduled offset by one hour. 

To upgrade to this release, take into account the following checklist:

• Back up your Idera Enterprise Job Manager Repository and Core Repository. The upgrade process will convert the repositories from the 1.0 schema to the 1.1 schema. Once you finish the upgrade you cannot revert to previous repositories, be sure to take a backup in case you want to revert to 1.0.
• Make sure that your environment meets the hardware and software requirements for installing SQL Enterprise Job Manager. 
• Ensure you have the required accounts and permissions .

Open the installer, SQL Enterprise Job Manager notifies you that you are upgrading to a new version and asks you if you are certain of this action. Click Yes to proceed with the upgrade.