如何在python中将小时添加到当前时间
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How to add hours to current time in python
提问by Shiva Krishna Bavandla
I am able to get the current time as below:
我能够获得当前时间如下：
from datetime import datetime
str(datetime.now())[11:19]
Result
结果
'19:43:20'
Now, i am trying to add 9 hoursto the above time, how can I add hours to current time in Python?
现在，我正在尝试添加9 hours到上述时间，如何在 Python 中将小时添加到当前时间？
回答by Jon Clements
from datetime import datetime, timedelta
nine_hours_from_now = datetime.now() + timedelta(hours=9)
#datetime.datetime(2012, 12, 3, 23, 24, 31, 774118)
And then use string formatting to get the relevant pieces:
然后使用字符串格式来获取相关部分：
>>> '{:%H:%M:%S}'.format(nine_hours_from_now)
'23:24:31'
If you're only formatting the datetime then you can use:
如果您只是格式化日期时间，那么您可以使用：
>>> format(nine_hours_from_now, '%H:%M:%S')
'23:24:31'
Or, as @eumiro has pointed out in comments - strftime
或者，正如@eumiro 在评论中指出的那样- strftime
回答by u1860929
>>> from datetime import datetime, timedelta
>>> str(datetime.now() + timedelta(hours=9))[11:19]
'01:41:44'
But the better way is:
但更好的方法是：
>>> (datetime.now() + timedelta(hours=9)).strftime('%H:%M:%S')
'01:42:05'
You can refer strptimeand strftimebehaviorto better understand how python processes dates and time field
您可以参考strptime和strftime行为以更好地了解python如何处理日期和时间字段
