Automation based on past / future date, not current date

Hi there,

Is there a way to automate a deadline column from a past / future date and not the current date?

For example, I want to set up a reminder to reply to people within 3 working days of them first making contact. However, at the moment, I can only set an automation for three working days from the day I log the contact, not from the date they actually contacted us.