将Unix时间戳字符串转换为可读日期

问题:将Unix时间戳字符串转换为可读日期

我有一个表示Python中的unix时间戳的字符串(即“ 1284101485”),我想将其转换为可读的日期。使用时time.strftime,我得到TypeError

>>>import time
>>>print time.strftime("%B %d %Y", "1284101485")

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: argument must be 9-item sequence, not str

I have a string representing a unix timestamp (i.e. “1284101485”) in Python, and I’d like to convert it to a readable date. When I use time.strftime, I get a TypeError:

>>>import time
>>>print time.strftime("%B %d %Y", "1284101485")

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: argument must be 9-item sequence, not str

回答 0

使用datetime模块:

from datetime import datetime
ts = int("1284101485")

# if you encounter a "year is out of range" error the timestamp
# may be in milliseconds, try `ts /= 1000` in that case
print(datetime.utcfromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S'))

Use datetime module:

from datetime import datetime
ts = int("1284101485")

# if you encounter a "year is out of range" error the timestamp
# may be in milliseconds, try `ts /= 1000` in that case
print(datetime.utcfromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S'))

回答 1

>>> from datetime import datetime
>>> datetime.fromtimestamp(1172969203.1)
datetime.datetime(2007, 3, 4, 0, 46, 43, 100000)

取自http://seehuhn.de/pages/pdate

>>> from datetime import datetime
>>> datetime.fromtimestamp(1172969203.1)
datetime.datetime(2007, 3, 4, 0, 46, 43, 100000)

Taken from http://seehuhn.de/pages/pdate


回答 2

投票最多的答案建议使用fromtimestamp,因为它使用本地时区,因此容易出错。为了避免出现问题,更好的方法是使用UTC:

datetime.datetime.utcfromtimestamp(posix_time).strftime('%Y-%m-%dT%H:%M:%SZ')

其中posix_time是要转换的Posix纪元时间

The most voted answer suggests using fromtimestamp which is error prone since it uses the local timezone. To avoid issues a better approach is to use UTC:

datetime.datetime.utcfromtimestamp(posix_time).strftime('%Y-%m-%dT%H:%M:%SZ')

Where posix_time is the Posix epoch time you want to convert


回答 3

>>> import time
>>> time.ctime(int("1284101485"))
'Fri Sep 10 16:51:25 2010'
>>> time.strftime("%D %H:%M", time.localtime(int("1284101485")))
'09/10/10 16:51'
>>> import time
>>> time.ctime(int("1284101485"))
'Fri Sep 10 16:51:25 2010'
>>> time.strftime("%D %H:%M", time.localtime(int("1284101485")))
'09/10/10 16:51'

回答 4

有两个部分:

  1. 将Unix时间戳(“自纪元以来的秒数”)转换为本地时间
  2. 以所需格式显示当地时间。

即使本地时区过去有不同的utc偏移并且python无法访问tz数据库,获取本地时间有效的一种便携式方法是使用pytz时区:

#!/usr/bin/env python
from datetime import datetime
import tzlocal  # $ pip install tzlocal

unix_timestamp = float("1284101485")
local_timezone = tzlocal.get_localzone() # get pytz timezone
local_time = datetime.fromtimestamp(unix_timestamp, local_timezone)

要显示它,您可以使用系统支持的任何时间格式,例如:

print(local_time.strftime("%Y-%m-%d %H:%M:%S.%f%z (%Z)"))
print(local_time.strftime("%B %d %Y"))  # print date in your format

如果您不需要当地时间,请改为获取可读的UTC时间:

utc_time = datetime.utcfromtimestamp(unix_timestamp)
print(utc_time.strftime("%Y-%m-%d %H:%M:%S.%f+00:00 (UTC)"))

如果您不关心可能影响返回日期的时区问题,或者python是否有权访问系统上的tz数据库:

local_time = datetime.fromtimestamp(unix_timestamp)
print(local_time.strftime("%Y-%m-%d %H:%M:%S.%f"))

在Python 3上,您可以仅使用stdlib获得时区感知日期时间(如果python无法访问系统上的tz数据库,例如Windows上的UTC偏移量可能是错误的):

#!/usr/bin/env python3
from datetime import datetime, timezone

utc_time = datetime.fromtimestamp(unix_timestamp, timezone.utc)
local_time = utc_time.astimezone()
print(local_time.strftime("%Y-%m-%d %H:%M:%S.%f%z (%Z)"))

time模块中的函数是对应C API的薄包装,因此它们可能比对应datetime方法的可移植性差,否则您也可以使用它们:

#!/usr/bin/env python
import time

unix_timestamp  = int("1284101485")
utc_time = time.gmtime(unix_timestamp)
local_time = time.localtime(unix_timestamp)
print(time.strftime("%Y-%m-%d %H:%M:%S", local_time)) 
print(time.strftime("%Y-%m-%d %H:%M:%S+00:00 (UTC)", utc_time))  

There are two parts:

  1. Convert the unix timestamp (“seconds since epoch”) to the local time
  2. Display the local time in the desired format.

A portable way to get the local time that works even if the local time zone had a different utc offset in the past and python has no access to the tz database is to use a pytz timezone:

#!/usr/bin/env python
from datetime import datetime
import tzlocal  # $ pip install tzlocal

unix_timestamp = float("1284101485")
local_timezone = tzlocal.get_localzone() # get pytz timezone
local_time = datetime.fromtimestamp(unix_timestamp, local_timezone)

To display it, you could use any time format that is supported by your system e.g.:

print(local_time.strftime("%Y-%m-%d %H:%M:%S.%f%z (%Z)"))
print(local_time.strftime("%B %d %Y"))  # print date in your format

If you do not need a local time, to get a readable UTC time instead:

utc_time = datetime.utcfromtimestamp(unix_timestamp)
print(utc_time.strftime("%Y-%m-%d %H:%M:%S.%f+00:00 (UTC)"))

If you don’t care about the timezone issues that might affect what date is returned or if python has access to the tz database on your system:

local_time = datetime.fromtimestamp(unix_timestamp)
print(local_time.strftime("%Y-%m-%d %H:%M:%S.%f"))

On Python 3, you could get a timezone-aware datetime using only stdlib (the UTC offset may be wrong if python has no access to the tz database on your system e.g., on Windows):

#!/usr/bin/env python3
from datetime import datetime, timezone

utc_time = datetime.fromtimestamp(unix_timestamp, timezone.utc)
local_time = utc_time.astimezone()
print(local_time.strftime("%Y-%m-%d %H:%M:%S.%f%z (%Z)"))

Functions from the time module are thin wrappers around the corresponding C API and therefore they may be less portable than the corresponding datetime methods otherwise you could use them too:

#!/usr/bin/env python
import time

unix_timestamp  = int("1284101485")
utc_time = time.gmtime(unix_timestamp)
local_time = time.localtime(unix_timestamp)
print(time.strftime("%Y-%m-%d %H:%M:%S", local_time)) 
print(time.strftime("%Y-%m-%d %H:%M:%S+00:00 (UTC)", utc_time))  

回答 5

为了使UNIX时间戳易于理解,我以前在脚本中使用过它:

import os, datetime

datetime.datetime.fromtimestamp(float(os.path.getmtime("FILE"))).strftime("%B %d, %Y")

输出:

‘2012年12月26日’

For a human readable timestamp from a UNIX timestamp, I have used this in scripts before:

import os, datetime

datetime.datetime.fromtimestamp(float(os.path.getmtime("FILE"))).strftime("%B %d, %Y")

Output:

‘December 26, 2012’


回答 6

您可以像这样转换当前时间

t=datetime.fromtimestamp(time.time())
t.strftime('%Y-%m-%d')
'2012-03-07'

将字符串中的日期转换为其他格式。

import datetime,time

def createDateObject(str_date,strFormat="%Y-%m-%d"):    
    timeStamp = time.mktime(time.strptime(str_date,strFormat))
    return datetime.datetime.fromtimestamp(timeStamp)

def FormatDate(objectDate,strFormat="%Y-%m-%d"):
    return objectDate.strftime(strFormat)

Usage
=====
o=createDateObject('2013-03-03')
print FormatDate(o,'%d-%m-%Y')

Output 03-03-2013

You can convert the current time like this

t=datetime.fromtimestamp(time.time())
t.strftime('%Y-%m-%d')
'2012-03-07'

To convert a date in string to different formats.

import datetime,time

def createDateObject(str_date,strFormat="%Y-%m-%d"):    
    timeStamp = time.mktime(time.strptime(str_date,strFormat))
    return datetime.datetime.fromtimestamp(timeStamp)

def FormatDate(objectDate,strFormat="%Y-%m-%d"):
    return objectDate.strftime(strFormat)

Usage
=====
o=createDateObject('2013-03-03')
print FormatDate(o,'%d-%m-%Y')

Output 03-03-2013

回答 7

除了使用time / datetime包之外,pandas还可以用于解决相同的问题。这是我们可以使用pandas时间戳转换为可读日期的方法

时间戳可以有两种格式:

  1. 13位数字(毫秒)-要将毫秒转换日期,请使用:

    import pandas
    result_ms=pandas.to_datetime('1493530261000',unit='ms')
    str(result_ms)
    
    Output: '2017-04-30 05:31:01'
  2. 10位(秒)-要将转换为日期,请使用:

    import pandas
    result_s=pandas.to_datetime('1493530261',unit='s')
    str(result_s)
    
    Output: '2017-04-30 05:31:01'

Other than using time/datetime package, pandas can also be used to solve the same problem.Here is how we can use pandas to convert timestamp to readable date:

Timestamps can be in two formats:

  1. 13 digits(milliseconds) – To convert milliseconds to date, use:

    import pandas
    result_ms=pandas.to_datetime('1493530261000',unit='ms')
    str(result_ms)
    
    Output: '2017-04-30 05:31:01'
    
  2. 10 digits(seconds) – To convert seconds to date, use:

    import pandas
    result_s=pandas.to_datetime('1493530261',unit='s')
    str(result_s)
    
    Output: '2017-04-30 05:31:01'
    

回答 8

timestamp ="124542124"
value = datetime.datetime.fromtimestamp(timestamp)
exct_time = value.strftime('%d %B %Y %H:%M:%S')

您还可以从时间戳获取带有时间的可读日期,也可以更改日期格式。

timestamp ="124542124"
value = datetime.datetime.fromtimestamp(timestamp)
exct_time = value.strftime('%d %B %Y %H:%M:%S')

Get the readable date from timestamp with time also, also you can change the format of the date.


回答 9

在Python 3.6+中:

import datetime

timestamp = 1579117901
value = datetime.datetime.fromtimestamp(timestamp)
print(f"{value:%Y-%m-%d %H:%M:%S}")

输出:

2020-01-15 19:51:41

说明:

In Python 3.6+:

import datetime

timestamp = 1579117901
value = datetime.datetime.fromtimestamp(timestamp)
print(f"{value:%Y-%m-%d %H:%M:%S}")

Output:

2020-01-15 19:51:41

Explanation:


回答 10

import datetime
temp = datetime.datetime.fromtimestamp(1386181800).strftime('%Y-%m-%d %H:%M:%S')
print temp
import datetime
temp = datetime.datetime.fromtimestamp(1386181800).strftime('%Y-%m-%d %H:%M:%S')
print temp

回答 11

可以使用gmtime和format函数完成此操作的另一种方法;

from time import gmtime
print('{}-{}-{} {}:{}:{}'.format(*gmtime(1538654264.703337)))

输出: 2018-10-4 11:57:44

Another way that this can be done using gmtime and format function;

from time import gmtime
print('{}-{}-{} {}:{}:{}'.format(*gmtime(1538654264.703337)))

Output: 2018-10-4 11:57:44


回答 12

我刚刚成功使用过:

>>> type(tstamp)
pandas.tslib.Timestamp
>>> newDt = tstamp.date()
>>> type(newDt)
datetime.date

i just successfully used:

>>> type(tstamp)
pandas.tslib.Timestamp
>>> newDt = tstamp.date()
>>> type(newDt)
datetime.date

回答 13

快速又脏的一个衬里:

'-'.join(str(x) for x in list(tuple(datetime.datetime.now().timetuple())[:6]))

‘2013-5-5-1-9-43’

quick and dirty one liner:

'-'.join(str(x) for x in list(tuple(datetime.datetime.now().timetuple())[:6]))

‘2013-5-5-1-9-43’


回答 14

您可以使用easy_date使其变得容易:

import date_converter
my_date_string = date_converter.timestamp_to_string(1284101485, "%B %d, %Y")

You can use easy_date to make it easy:

import date_converter
my_date_string = date_converter.timestamp_to_string(1284101485, "%B %d, %Y")