Python timezone challenge- Day 17

the challenge here is to let the user choose the time zone from list of time zones and accordingly display the time

  
import datetime
import pytz

available_zones ={"1":"African/Tunis",
 "2":"Asia/Kolkata",
 "3":"Australia/Adelaide",
 "4":"Europe/Brussels",
 "5":"Europe/London",
 "6":"Japan",
 "7":"Pacific/Tahiti"
}
print("Please Choose the timezone (or 0 to quit)")
for place in sorted(available_zones):
    print("\t {} : {}".format(place,available_zones[place]))

while True:
    choice = input()
    if choice == 0:
        break
    if choice in available_zones.keys():
        tz_to_display = pytz.timezone(available_zones[choice])
        world_time = datetime.datetime.now(tz=tz_to_display)
        print ("The time in {} is {} {} ".format(available_zones[choice],
                             world_time.strftime("%A %x %X %z"),world_time.tzname()))
        print("LocalTime is {}".format(datetime.datetime.now().strftime("%A %x %X %z")))
        print("UTCTime is {}".format(datetime.datetime.utcnow().strftime("%A %x %X %z")))