Hi Allison,
Currently, this is the standard functionality. Attendees can view the event in their devices time zone, but can edit this within their profile (Profile > Settings > Time Zone). We do not have a way to set a view for all attendees at this time, but I recommend adding this to the Ideas tab (Participate tab > Product Ideas)!
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Madeline Stalnaker [Designation]
Lead Client Success Advisor
Cvent
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