datetime模块

 

from datetime import datetime

# print(datetime.now()) # 直接获取当前时间
# print(datetime.utcnow()) # 获取格林威治时间

# dt=datetime.now()
# print(dt.year)
# print(dt.month)
# print(dt.day)
# print(dt.hour)


#计算时间差
# dt1=datetime(2022,7,8,12,0)
# dt2=datetime(2020,5,5,13,0)
# print(dt1-dt2)
# print(type(dt1))


#把字符串转为datetime时间类型
s1='2022/7/8'
ret=datetime.strptime(s1,'%Y/%m/%d')
print(ret,type(ret))

#把datetime时间类型转为字符串
dt=datetime(2022,7,8,13,0)
ret1=dt.strftime('%Y-%m-%d %H:%M:%S')
print(ret,type(ret1))