Timezone is a setting in each recruiter account profile. The timezones displayed in all event pages are automatically converted from the original settings where events are originally created.
To change your timezone:
Go to your Event list and click to open your draft event (you can't change anything of a published event) and click “Timezone settings”
or go to My Profile page and click "Edit Profile"
On the Edit Account Profile page, change the time zone as needed - the default time zone is Pacific Time.
Click "Save changes" and go back to events to see applied changes.