Python_time&datetime

获取常用日常时间

# encoding: utf-8

import time
import datetime

# 当前时间
datetime_now_time = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
print("datetime-当前时间:%s" % datetime_now_time)

time_now_time = time.strftime("%Y-%m-%d %H:%M:%S")
print("time-当前时间:%s" % time_now_time)

# 今日
datetime_now_day = datetime.date.today()
print("datetime-今日:%s" % datetime_now_day)

time_now_day = time.strftime("%Y-%m-%d")
print("time-今日:%s" % time_now_day)

# 今日0点
datetime_now_day_0 = datetime.date.today().strftime("%Y-%m-%d %H:%M:%S")
print("datetime-今日0点:%s" % datetime_now_day_0)

time_now_day_0 = time.strftime("%Y-%m-%d 00:00:00")
print("time-今日0点:%s" % time_now_day_0)

时间戳与日常时间格式的相互转换

代码如下：

import time

# 时间戳转换为年月日时分秒格式
t_time = time.time()
print(f"当前时间戳：{t_time}")

f_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(t_time))
print(f"转换为日常时间：{f_time}\n")

# 年月日时分秒格式转换为时间戳
p_time = time.strptime(f_time, "%Y-%m-%d %H:%M:%S")
print(f"先转为结构时间：{p_time}")

f_time = time.mktime(p_time)
print(f"再转换成时间戳：{f_time}")

执行结果如下：

时间计算

# encoding: utf-8

import datetime

# 昨日
yesterday = datetime.date.today() + datetime.timedelta(days=-1)
print(yesterday)
yesterday = datetime.date.today() - datetime.timedelta(days=1)
print(yesterday)

# 明日当前时间
tomorrow_now_time = (datetime.datetime.now() + datetime.timedelta(days=1)).strftime("%Y-%m-%d %H:%M:%S")
print(tomorrow_now_time)

# 距离年底相差天数
end_year_day = datetime.datetime(2021, 12, 31)
today = datetime.datetime.now()
left_days = (end_year_day - today).days
print(left_days)