Zero hour. Joe, Eddie and Mr. White shoot each other. 39 seconds later, Mr. Pink exits the warehouse. 55 seconds after that, police sirens can be heard in the background. Earlier in the movie, when Mr. Blonde shows them the tied up cop, you can see that it only takes them 15 seconds to get from the building to the car while walking. Mr. Pink is shown running when he exits the building, so it is safe to say that he got to the car within 5-10 seconds, started it within another 5-10 seconds, and sped off with a full 30 seconds before the cops came within the vicinity of the area