1.时间也是数字
2.1970年1月1日为unix时间点
>>> import time
>>> time.time()
1626540103.955374
>>> b=int(time.time())
>>> b
1626540182
>>> totalMinutes = b/60
>>> totalMinutes
27109003.033333335
>>> totalMinutes = b//60
>>> totalMinutes
27109003
>>> totalHours=totalMinutes//60
>>> totalHours
451816
>>>
