Once your job has been accepted, you will be sent an email and app notification - You will be able to see who is coming and when.
The job will note the Date and ETA. The ETA will have a 1 - 3 hour window depending on the category. You pro will arrive any time in this time window.
Check your ETA and pro info:
App: Click Job (bottom menu) --> Click on your request (under active jobs) --> Eta and date are listed first: