import json
import time

with open('bbacktest-filename.json','r') as f:
    array = json.load(f)
for i in range(0,len(array)):
    array[i][2]=time.ctime(array[i][2])
    array[i][3]=time.ctime(array[i][3])
for i in range(0,len(array)):
    print(array[i])