猜单词与倒计时的问题

如图所示python猜单词的问题中的这个倒计时1分钟怎么设置，时间到结束程序

import random
import time
right = 0
num = 1
W = ['play', 'guess', 'english']
repeat = 'yes'
time1 = time.time()
while num < len(W)+ 1:
    word = random.choice(W)
    word1 =word
    answer  = word
    a = ''
    for i in word:
        postion = random.randrange(len(word))
        a += word[postion]
        word = word[0:postion] + word[(postion+1):]
    print("乱序后的单词：", a)
    guess = input("输入你的猜测：")
    if time.time() - time1 >= 60:
        print("时间结束")
        break
    while guess != answer:
        guess = input("重新猜测：")
    print("猜对了")
    W.remove(word1)
    right += 1
 
print("一共猜对了{}个词".format(right))
print("游戏结束")

可以试试，有啥问题再改