How to add to input time using timedelta

Question

Im attempting to input a time, then distance, and speed. From that find the time traveled and add that to the departure time to get arrival time. I can't seem to find the proper format that doesn't give me an error.
from datetime import date, datetime, time, timedelta
#date_str=(input("date"))
time_str=(input("time"))
dist=int((input("distance")))
speed=int((input("speed")))
travel_time=dist//speed
print(travel_time)
arr_time=time_str+datetime.timedelta(hours=int(travel_time))
print(arr_time)

Answer 1

Worked. Thank you. This datetime and timedelta just isn't clicking