When my cousins were coming on the aeroplane and  they were flying  for 3 hours then I needed to see when I needed to be at
home to see them.

When I was at home I needed to grab my phone to see what time I had to be home for lunch and I went to the park at 9:29am and I needed to be home at 12:15pm so I went to the park for 2 hours and 46 mins.