I am creating a diary survey and want to give participants a week to register before the first survey email is sent. I see that I can set a delay for the email / link to go out by hours or days, but can I have the email sent on a specific date to all survey takers regardless of when they entered their name and email address in the survey?
It seems like you may want to think about using a separate survey to solicit sign-ups (perhaps that is what you are already doing).
Once you have all the respondents registered, I would recommend using an email campaign to distribute the initial diary survey:
Setting up an email campaign allows you to set a specific date/time for the invite to go out.
Hope this helps!