If you want to extract dates from a Zendesk ticket subject or body and store it in a separate custom date field it can be achieved using helpdeskapi.com
Even dates stored in the following ways can be extracted to update a custom-ticket field or already given date field within Zendesk (i.e. due date).
A Zendesk automation could then fire to escalate tickets before a date specified by customers within their ticket text.
|I need my order at the end of October
|Will my package arrive until 4th November 2019?
|next Monday, depending on the actual date
|Beginning of next month
|1st of the next month