[英]Python datetime - setting fixed hour and minute after using strptime to get day,month,year
I've successfully converted something of 26 Sep 2012
format to 26-09-2012
using:我已经成功地将26 Sep 2012
格式转换为26-09-2012
使用:
datetime.strptime(request.POST['sample_date'],'%d %b %Y')
However, I don't know how to set the hour and minute of something like the above to 11:59.但是,我不知道如何将上述内容的小时和分钟设置为 11:59。 Does anyone know how to do this?有谁知道如何做到这一点?
Note, this can be a future date or any random one, not just the current date.请注意,这可以是未来日期或任何随机日期,而不仅仅是当前日期。
Use datetime.replace
:使用datetime.replace
:
from datetime import datetime
dt = datetime.strptime('26 Sep 2012', '%d %b %Y')
newdatetime = dt.replace(hour=11, minute=59)
datetime.replace() will provide the best options. datetime.replace()将提供最佳选择。 Also, it provides facility for replacing day, year, and month.此外,它还提供了替换日、年和月的功能。
Suppose we have a datetime
object and date is represented as: "2017-05-04"
假设我们有一个datetime
对象,日期表示为: "2017-05-04"
>>> from datetime import datetime
>>> date = datetime.strptime('2017-05-04',"%Y-%m-%d")
>>> print(date)
2017-05-04 00:00:00
>>> date = date.replace(minute=59, hour=23, second=59, year=2018, month=6, day=1)
>>> print(date)
2018-06-01 23:59:59
If you have a date as a datetime.datetime
(or a datetime.date
) instance and want to combine it via a time from a datetime.time
instance, then you can use the classmethod datetime.datetime.combine
:如果您有一个日期作为datetime.datetime
(或datetime.date
)实例并希望通过datetime.time
实例中的时间将其组合,那么您可以使用 classmethod datetime.datetime.combine
:
import datetime
dt = datetime.datetime(2020, 7, 1)
t = datetime.time(12, 34)
combined = datetime.datetime.combine(dt.date(), t)
Shortcuts to convert datetime to max or min将日期时间转换为最大值或最小值的快捷方式
import datetime
def dt_time_min(dt):
"""converts any datetime/date to new datetime with same date and time=0:00:00"""
return datetime.datetime.combine(dt, datetime.time.min)
def dt_time_max(dt):
"""converts any datetime/date to new datetime with same date and time=23:59:59.999999"""
return datetime.datetime.combine(dt, datetime.time.max)
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.