Yes. From the job's Schedule screen, go to Submitted Dates, and from the Action dropdown, select Propose new dates:
A pop-up window will load where you can select the new timeframe. Click Save to confirm your preference:
The applicant will be notified of the newly proposed dates. The applicant also has the option to change the dates on their end, so that the timeframe can be effectively negotiated to suit both parties. If the applicant changes the dates, a message "Requestor submitted new dates" will be visible below the Submitted Dates field:
Once the dates are acceptable, confirm them by selecting Approve Dates from the dropdown:
Dates can continue to be updated until the permit has been approved.