Well Card, Silas is using a bike. Bikes are usually faster than scooters, so he probably would have gotten there first if transportation would determine who gets there first. Also the entire group would have gone together if all three of you are going XD. 

Therefore, you getting there before everyone else is probably not gonna happen.

Also you all are on the Port Island District (if you're at Gekkoukan), Ren is in the Residential District. You all would have had to take a train to get off of the Port Island District. So essentially all three of you would arrive at the same time. 

Also currently right now its about 7 PM.