Daylight Savings Time shifted Scheduled Reports in SEI

Hello,

As the title suggests, my business' reports are now being sent out an hour earlier than they should due to DST. When looking at the admin guide in SEI, it suggests I set a Time Zone for the scheduled job. However, as you can see below the option does not appear. 

Similarly, I have checked the time on the server SEI is hosted on, and it is reflecting the correct time. The KB page about DST and SEI Scheduler doesn't tell me how to actually fix the issue. 

Does anyone have an idea how to update the scheduler to change with DST?