Schedule your email to be sent automatically at a future date and
time.
If you edit an email during its scheduled delivery time, the email
will not be sent. You must choose a new delivery day and time.
Note: If the time zone is changed for your organization, the scheduled
emails will display the new time zone. For example, if your email was scheduled
for 9:00 AM PST and the time zone is changed to EST, the email will be
scheduled for 12:00 PM EST.