Python datetime удалить миллисекунды

Remove time from datetime in Python

The datetime library is a standard Python library that can be used to store and process date and time values. The library implements the datetime class that can store these values and manipulates them. We can use the constructor of this class to create such objects and initialize them with the required values.

It also has two classes called date and time that can store only the date and time values respectively.

Ways to remove time from datetime in Python

As discussed, the datetime object can store date and time values. In this tutorial, we will discuss how to remove time from datetime in Python to only display date values.

Using the date attributes to remove time from datetime in Python

The datetime constructor has different attributes to store the values. These are the day , month , year , hour , minutes , and seconds . We can access the required value using their respective attribute.

To remove time from datetime in Python, we can simply create a string by appending the values of only the date attributes from a given datetime object.

In the above example, we create a rem_time() function that takes a datetime object and returns the date values in a string. The date attributes are returned as an integer so we need to convert them to a string using the str() function.

Instead of a string, we can also get the final result in a date object. Objects of this class contain only date values.

In the above example, essentially we are just creating a new date object using the values from the datetime object.

Using the datetime.date() function to remove time from datetime in Python

The date() function takes a datetime object and returns the date object using the values of the provided datetime object. This way, we remove time from datetime in Python.

This is similar to what we achieved in the second part of the previous method.

Using the datetime.strftime() function to remove time from datetime in Python

We can also use the strftime() function to remove time from datetime in Python. The strftime() function is used to return a string based on a datetime object. We need to specify the format of the required values to extract them.

To remove time from datetime in Python, we will use the %Y-%m-%d format within the function.

Using the pandas library to remove time from datetime in Python

The pandas library is used to work with DataFrame objects in Python. Often, these DataFrames contain date and time values so a submodule to handle date and time values was added to this library.

The to_datetime() function is used to create a timestamp object that represents date and time values. We can extract the date from this object using the date() method.

This will remove time from datetime in Python.

Conclusion

To wrap up, we discussed how to remove time from datetime in Python. To do this, we need to display only the date part from the datetime object.

In the first method, we used the individual attributes from the datetime object to create a new string and a date object. The second method uses the date() function to return the date object.

The third method also returns a string using the strftime() function and removes the time from the datetime object. An additional method involving the pandas library is also displayed at the end.

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Simple way to drop milliseconds from python datetime.datetime object [duplicate]

You can use datetime.replace() method -, 1 now = datetime.now().replace(microsecond=0) – Waqas Aug 10 at 14:43 ,Software Recommendations,Is there a simpler way to end up with a datetime.datetime object for mongoDB than this?

>>> d = datetime.datetime.today().replace(microsecond=0) >>> d datetime.datetime(2015, 7, 18, 9, 50, 20) 

Answer by Taylor Murray

My colleague needs me to drop the milliseconds from my python timestamp objects in order to comply with the old POSIX (IEEE Std 1003.1-1988) standard. The tortured route that accomplishes this task for me is as follows:,From the comments it became clear that OP needs a solution for Python 2.7.,Is there a simpler way to end up with a datetime.datetime object for mongoDB than this?,There should be no need to convert to / from strings.

My colleague needs me to drop the milliseconds from my python timestamp objects in order to comply with the old POSIX (IEEE Std 1003.1-1988) standard. The tortured route that accomplishes this task for me is as follows:

datetime.datetime.strptime(datetime.datetime.today().strftime("%Y-%m-%d %H:%M:%S"),"%Y-%m-%d %H:%M:%S") 

Answer by Dakota Burnett

>>> datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") '2011-11-03 18:21:26' 

Answer by Avery Guerrero

Write a Python program to drop microseconds from datetime.,Python Itertools exercises,Python Pandas exercises,Python Numpy exercises

Python Code:

import datetime dt = datetime.datetime.today().replace(microsecond=0) print() print(dt) print() 

Answer by Armando Villa

This tutorial will cover how to convert a datetime object to a string containing the milliseconds.,Use the strftime() Method to Format DateTime to String,Use the isoformat() Method to Format DateTime to String,Use the str() Function to Format DateTime to String

The strftime() method returns a string based on a specific format specified as a string in the argument.

from datetime import datetime date_s = (datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')) print(date_s) 

The %Y-%m-%d %H:%M:%S.%f is the string format. The now() method returns a datetime.datetime object of the current date and time. Notice that the final output has microseconds that could be easily truncated to milliseconds. For example:

from datetime import datetime date_s = (datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3]) print(date_s) 

The isoformat() method of the datetime class returns a string representing the date in ISO 8601 format. We can specify the character which separates the date and time to be ‘ ‘ using the sep parameter and the timespace parameter that determines the time component to be milliseconds .

from datetime import datetime date_s = datetime.now().isoformat(sep=' ', timespec='milliseconds') print(date_s) 

We can also simply remove the last three digits from the string to get the final result in milliseconds.

from datetime import datetime t = datetime.now() date_s = str(t)[:-3] print(date_s) 

Answer by Leila Black

object timedelta tzinfo time date datetime 

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Remove seconds from the datetime in Python

In this tutorial, you will learn about how to remove seconds from the datetime in Python. Python has a module datetime that provides classes for manipulating dates and times in a complex and simple way.

Here we are going to use some predefined class and predefined method to remove seconds from the datetime module in Python.

As datetime is a module we have to import it. Where datetime() is the class and strftime() is the method of this module.

#importing datetime module import datetime

In the above python program, we have imported the datetime module using the import function.

Datetime() class

It is the combination of date and time also with the addition of some attributes like the year, month, timezone information, etc.

Now let’s see an example to print the current date and time using the datetime module->

from datetime import datetime print("Current date and time:",datetime.now())

Current date and time: 2020-01-16 16:50:28.303207

In the above python program, we have imported the datetime module and printed the current date and time.

strftime() method

The strftime() method is defined under the classes of time, date, datetime modules. This method creates a string using provided arguments.
Now let’s see an example:

from datetime import datetime cdate=datetime.now() print("Year:",cdate.strftime("%Y")) print("Month:",cdate.strftime("%m")) print("Date:",cdate.strftime("%d"))

Year: 2020 Month: 01 Date: 16

In the above python program, using the datetime module and strftime() method we have modified the date and time into the required string. Here %Y, %m, %d are format codes for year, month, date. So the first print statement print the year and the second one prints the month and finally the third one prints the date.

Program to remove the seconds from the datetime in Python

from datetime import datetime print("Present date and time:",datetime.now()) print("Datetime with out seconds",datetime.now().strftime("%Y-%m-%d, %H:%M"))

Present date and time: 2020-01-16 17:10:29.795763 Datetime without seconds 2020-01-16, 17:10

In the above program, using the datetime module we have imported and printed the present date and time in the first step. Finally, in the last step of our script, we have printed the modified date and time by removing the seconds from the present date and time.

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Удаление миллисекунд из объекта datetime в Python

Я пытаюсь удалить милисекунды (28109) из этой строки 2017-09-12 22:33:55.28109 в Python.

import datetime as dt from datetime import date,datetime created_date = datetime.fromtimestamp(ctime) d=datetime.strptime(created_date, "%Y-%m-%d %H:%M:%S.%fZ") created_date = datetime.strftime(d, "%m/%d/%Y %I:%M:%S %p") print(created_date) 

`d=datetime.strptime(created_date, "%Y-%m-%d %H:%M:%S.%fZ")` 

TypeError: must be str, not datetime.datetime

Любая помощь высоко ценится. Заранее спасибо.

2 ответа

У вас уже есть datetime объект, вам не нужно анализировать его снова. datetime.fromtimestamp() звонить было достаточно.

Удалить datetime.strptime() линия.

created_date = datetime.fromtimestamp(ctime) created_date = created_date.strftime("%m/%d/%Y %I:%M:%S %p") print(created_date) 

Я также изменил ваш strftime() вызов, это метод, вы просто вызываете его на datetime объект у вас есть.

Я подозреваю, что вы напечатали возвращаемое значение datetime.fromtimestamp() позвони, и запутался. str() преобразование datetime() instance форматирует значение в виде строки ISO 8601. Обратите внимание, что даже если у вас была строка, вы использовали неправильный формат (в этой строке нет часового пояса, поэтому %Z не применяется).

Если вам нужен datetime объект, а не отформатированную строку, вы также могли бы просто преобразовать вашу метку времени в целое число; микросекунды записываются в десятичной части метки времени:

>>> ctime = 1505252035.28109 >>> datetime.fromtimestamp(ctime) datetime.datetime(2017, 9, 12, 22, 33, 55, 281090) >>> datetime.fromtimestamp(int(ctime)) datetime.datetime(2017, 9, 12, 22, 33, 55) >>> print(_) 2017-09-12 22:33:55 

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