How to get the current time in Python

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滥情空心 2020-11-22 06:47

What is the module/method used to get the current time?

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  • 2020-11-22 07:31
    >>> import datetime, time
    >>> time = time.strftime("%H:%M:%S:%MS", time.localtime())
    >>> print time
    '00:21:38:20S'
    
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  • 2020-11-22 07:31

    This question is for Python but since Django is one of the most widely used frameworks for Python, its important to note that if you are using Django you can always use timezone.now() instead of datetime.datetime.now(). The former is timezone 'aware' while the latter is not.

    See this SO answer and the Django doc for details and rationale behind timezone.now().

    from django.utils import timezone
    
    now = timezone.now()
    
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  • 2020-11-22 07:32

    Current time of a timezone

    from datetime import datetime
    import pytz
    
    tz_NY = pytz.timezone('America/New_York') 
    datetime_NY = datetime.now(tz_NY)
    print("NY time:", datetime_NY.strftime("%H:%M:%S"))
    
    tz_London = pytz.timezone('Europe/London')
    datetime_London = datetime.now(tz_London)
    print("London time:", datetime_London.strftime("%H:%M:%S"))
    
    tz_India = pytz.timezone('Asia/India')
    datetime_India = datetime.now(tz_India)
    print("India time:", datetime_India.strftime("%H:%M:%S"))
    
    #list timezones
    pytz.all_timezones
    
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  • 2020-11-22 07:33

    Use:

    >>> import datetime
    >>> datetime.datetime.now()
    datetime.datetime(2009, 1, 6, 15, 8, 24, 78915)
    
    >>> print(datetime.datetime.now())
    2009-01-06 15:08:24.789150
    

    And just the time:

    >>> datetime.datetime.now().time()
    datetime.time(15, 8, 24, 78915)
    
    >>> print(datetime.datetime.now().time())
    15:08:24.789150
    

    See the documentation for more information.

    To save typing, you can import the datetime object from the datetime module:

    >>> from datetime import datetime
    

    Then remove the leading datetime. from all of the above.

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  • 2020-11-22 07:34

    I want to get the time with milliseconds. A simple way to get them:

    import time, datetime
    
    print(datetime.datetime.now().time())                         # 11:20:08.272239
    
    # Or in a more complicated way
    print(datetime.datetime.now().time().isoformat())             # 11:20:08.272239
    print(datetime.datetime.now().time().strftime('%H:%M:%S.%f')) # 11:20:08.272239
    
    # But do not use this:
    print(time.strftime("%H:%M:%S.%f", time.localtime()), str)    # 11:20:08.%f
    

    But I want only milliseconds, right? The shortest way to get them:

    import time
    
    time.strftime("%H:%M:%S", time.localtime()) + '.%d' % (time.time() % 1 * 1000)
    # 11:34:23.751
    

    Add or remove zeroes from the last multiplication to adjust number of decimal points, or just:

    def get_time_str(decimal_points=3):
        return time.strftime("%H:%M:%S", time.localtime()) + '.%d' % (time.time() % 1 * 10**decimal_points)
    
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  • 2020-11-22 07:34

    You can do so using ctime():

    from time import time, ctime
    t = time()
    ctime(t)
    

    output:

    Sat Sep 14 21:27:08 2019

    These outputs are different because the timestamp returned by ctime() depends on your geographical location.

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