Home > Article > Backend Development > python tutorial python date function example
Libraries that operate on dates in python include: datetime, time
No matter which language it is in, the date function is definitely the most commonly used function. Let’s go directly to the example code
#datetime import datetime #当前日期 now = datetime.datetime.now() print(now.strftime('%Y-%m-%d %H:%M:%S')) print(now.strftime('%Y-%m-%d')) #string convert to datetime time_str = '2013-07-29 09:05:00' str_convert_2_time = datetime.datetime.strptime(time_str, '%Y-%m-%d %H:%M:%S') print(str_convert_2_time) #比较两个日期相差多少天 time_strA = '2013-07-29 09:05:00' time_strB ='2013-08-29 09:05:00' day = datetime.datetime.strptime(time_strA, '%Y-%m-%d %H:%M:%S') day2 = datetime.datetime.strptime(time_strB, '%Y-%m-%d %H:%M:%S') sub_day = day2 - day print('{0}和{1}相差{2}天'.format(time_strA, time_strB, str(sub_day.days))) #今后的n天的日期 n_days = 4 now = datetime.datetime.now() my_date = datetime.timedelta(days=n_days) n_day = now + my_date print('从今天起的{0}天的日期是:'.format(n_days)) print(n_day.strftime('%Y-%m-%d %H:%M:%S'))
The running results:
>>>>
2013-07-29 09:48:16
2013-07-29
2013-07-29 09:05:00
2013 -07-29 09:05:00 and 2013-08-29 09:05:00 are 31 days apart
The date 4 days from today is:
2013-08-02 09:48:16
> >>