blocks|key|4310611|text|我觉得你应该四处看看:+datetime.astimezone()|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4310612|4310613|另请参见pytz模块--它非常容易使用--作为示例：|4310614|eastern+=+timezone('US/Eastern')|code-block|syntax|javascript|4310615|4310616|示例：|4310617|from+datetime+import+datetime
import+pytz
from+tzlocal+import+get_localzone+#+$+pip+install+tzlocal

utc_dt+=+datetime(2009,+7,+10,+18,+44,+59,+193982,+tzinfo=pytz.utc)
print(utc_dt.astimezone(get_localzone()))+#+print+local+time
#+->+2009-07-10+14:44:59.193982-04:00|4310618|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|R|8|@]|9|@]|A|$]]|$1|C|3|D|5|6|7|S|8|@]|9|@]|A|$]]|$1|E|3|F|5|G|7|T|8|@]|9|@]|A|$H|I]]|$1|J|3|-4|5|6|7|U|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|V|8|@]|9|@]|A|$]]|$1|M|3|N|5|G|7|W|8|@]|9|@]|A|$H|I]]|$1|O|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|P|$]]

Think your should look around: datetime.astimezone()

<a href="http://docs.python.org/library/datetime.html#datetime.datetime.astimezone" rel="noreferrer">http://docs.python.org/library/datetime.html#datetime.datetime.astimezone</a>

Also see pytz module - it's quite easy to use -- as example:

<pre><code>eastern = timezone('US/Eastern')
</code></pre>

<a href="http://pytz.sourceforge.net/" rel="noreferrer">http://pytz.sourceforge.net/</a>

Example:

<pre><code>from datetime import datetime
import pytz
from tzlocal import get_localzone # $ pip install tzlocal

utc_dt = datetime(2009, 7, 10, 18, 44, 59, 193982, tzinfo=pytz.utc)
print(utc_dt.astimezone(get_localzone())) # print local time
# -&gt; 2009-07-10 14:44:59.193982-04:00
</code></pre>

blocks|key|1409584|text|前几天我写了这样的东西：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1409585|import+time,+datetime
def+nowString():
++++#+we+want+something+like+'2007-10-18+14:00%2B0100'
++++mytz="%25%2B4.4d"+%25+(time.timezone+/+-(60*60)+*+100)+#+time.timezone+counts+westwards!
++++dt++=+datetime.datetime.now()
++++dts+=+dt.strftime('%25Y-%25m-%25d+%25H:%25M')++#+%25Z+(timezone)+would+be+empty
++++nowstring="%25s%25s"+%25+(dts,mytz)
++++return+nowstring|code-block|syntax|javascript|1409586|所以对你来说有趣的部分可能是以"mytz=...“开头的那一行。time.timezone返回本地时区，尽管与UTC的符号相反。所以它说"-3600“来表达UTC%2B1。|1409587|尽管它对夏令时(DST，参见评论)一无所知，但我还是把这个留给了那些摆弄time.timezone的人。|offset|length|style|CODE|1409588|entityMap^0|0|0|0|10|D|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I wrote something like this the other day:

<pre><code>import time, datetime
def nowString():
 # we want something like '2007-10-18 14:00+0100'
 mytz="%+4.4d" % (time.timezone / -(60*60) * 100) # time.timezone counts westwards!
 dt = datetime.datetime.now()
 dts = dt.strftime('%Y-%m-%d %H:%M') # %Z (timezone) would be empty
 nowstring="%s%s" % (dts,mytz)
 return nowstring
</code></pre>

So the interesting part for you is probably the line starting with "mytz=...". time.timezone returns the local timezone, albeit with opposite sign compared to UTC. So it says "-3600" to express UTC+1.

Despite its ignorance towards Daylight Saving Time (DST, see comment), I'm leaving this in for people fiddling around with <code>time.timezone</code>.

blocks|key|110427|text|我认为最好的方法是使用datetime.tzinfo文档中定义的LocalTimezone类(转到http://docs.python.org/library/datetime.html#tzinfo-objects并向下滚动到“示例tzinfo类”部分)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|110428|假设Local是LocalTimezone的一个实例|110429|t+=+datetime.datetime(2009,+7,+10,+18,+44,+59,+193982,+tzinfo=utc)
local_t+=+t.astimezone(Local)|code-block|syntax|javascript|110430|然后，str(local_t)给出了：|110431|'2009-07-11+04:44:59.193982%2B10:00'|110432|这就是你想要的。|110433|(注意:这可能对你来说很奇怪，因为我在澳大利亚新南威尔士州，比UTC早10或11个小时)|110434|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.python.org/library/datetime.html#tzinfo-objects^0|B|F|W|D|1D|1N|0|0|2|5|8|D|0|0|3|C|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@$9|17|A|18|1|19]]|E|$]]|$1|F|3|G|5|6|7|1A|8|@$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1F|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1G|8|@$9|1H|A|1I|B|C]]|D|@]|E|$]]|$1|O|3|P|5|J|7|1J|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1K|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|1L|8|@]|D|@]|E|$]]|$1|U|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|V|$W|$5|X|Y|Z|E|$10|11]]]]

I believe the best way to do this is to use the <code>LocalTimezone</code> class defined in the <code>datetime.tzinfo</code> documentation (goto <a href="http://docs.python.org/library/datetime.html#tzinfo-objects" rel="noreferrer">http://docs.python.org/library/datetime.html#tzinfo-objects</a> and scroll down to the "Example tzinfo classes" section):

Assuming <code>Local</code> is an instance of <code>LocalTimezone</code>

<pre><code>t = datetime.datetime(2009, 7, 10, 18, 44, 59, 193982, tzinfo=utc)
local_t = t.astimezone(Local)
</code></pre>

then <code>str(local_t)</code> gives:

<pre><code>'2009-07-11 04:44:59.193982+10:00'
</code></pre>

which is what you want.

(Note: this may look weird to you because I'm in New South Wales, Australia which is 10 or 11 hours ahead of UTC)

blocks|key|4310699|text|我使用了这个函数datetime_to_local_timezone()，它看起来非常复杂，但我发现没有更简单的函数版本可以将datetime实例转换为操作系统中配置的本地时区，其中包含当时有效的UTC偏移|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4310700|import+time,+datetime

def+datetime_to_local_timezone(dt):
++++epoch+=+dt.timestamp()+#+Get+POSIX+timestamp+of+the+specified+datetime.
++++st_time+=+time.localtime(epoch)+#++Get+struct_time+for+the+timestamp.+This+will+be+created+using+the+system's+locale+and+it's+time+zone+information.
++++tz+=+datetime.timezone(datetime.timedelta(seconds+=+st_time.tm_gmtoff))+#+Create+a+timezone+object+with+the+computed+offset+in+the+struct_time.

++++return+dt.astimezone(tz)+#+Move+the+datetime+instance+to+the+new+time+zone.

utc+=+datetime.timezone(datetime.timedelta())
dt1+=+datetime.datetime(2009,+7,+10,+18,+44,+59,+193982,+utc)+#+DST+was+in+effect
dt2+=+datetime.datetime(2009,+1,+10,+18,+44,+59,+193982,+utc)+#+DST+was+not+in+effect

print(dt1)
print(datetime_to_local_timezone(dt1))

print(dt2)
print(datetime_to_local_timezone(dt2))|code-block|syntax|javascript|4310701|此示例打印四个日期。对于两个时刻，一个在2009年1月，一个在2009年7月，它以UTC和本地时区分别打印一次时间戳。这里，冬季使用CET+(UTC%2B01:00)，夏季使用CEST+(UTC%2B02:00)，它打印以下内容：|4310702|2009-07-10+18:44:59.193982%2B00:00
2009-07-10+20:44:59.193982%2B02:00

2009-01-10+18:44:59.193982%2B00:00
2009-01-10+19:44:59.193982%2B01:00|4310703|entityMap^0|8|S|1R|8|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

I use this function <code>datetime_to_local_timezone()</code>, which seems overly convoluted but I found no simpler version of a function that converts a <code>datetime</code> instance to the local time zone, as configured in the operating system, with the UTC offset that was in effect at that time:

<pre><code>import time, datetime

def datetime_to_local_timezone(dt):
 epoch = dt.timestamp() # Get POSIX timestamp of the specified datetime.
 st_time = time.localtime(epoch) # Get struct_time for the timestamp. This will be created using the system's locale and it's time zone information.
 tz = datetime.timezone(datetime.timedelta(seconds = st_time.tm_gmtoff)) # Create a timezone object with the computed offset in the struct_time.

 return dt.astimezone(tz) # Move the datetime instance to the new time zone.

utc = datetime.timezone(datetime.timedelta())
dt1 = datetime.datetime(2009, 7, 10, 18, 44, 59, 193982, utc) # DST was in effect
dt2 = datetime.datetime(2009, 1, 10, 18, 44, 59, 193982, utc) # DST was not in effect

print(dt1)
print(datetime_to_local_timezone(dt1))

print(dt2)
print(datetime_to_local_timezone(dt2))
</code></pre>

This example prints four dates. For two moments in time, one in January and one in July 2009, each, it prints the timestamp once in UTC and once in the local time zone. Here, where CET (UTC+01:00) is used in the winter and CEST (UTC+02:00) is used in the summer, it prints the following:

<pre><code>2009-07-10 18:44:59.193982+00:00
2009-07-10 20:44:59.193982+02:00

2009-01-10 18:44:59.193982+00:00
2009-01-10 19:44:59.193982+01:00
</code></pre>

blocks|key|1411692|text|从python+3.2开始，仅使用标准库函数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1411693|u_tm+=+datetime.datetime.utcfromtimestamp(0)
l_tm+=+datetime.datetime.fromtimestamp(0)
l_tz+=+datetime.timezone(l_tm+-+u_tm)

t+=+datetime.datetime(2009,+7,+10,+18,+44,+59,+193982,+tzinfo=l_tz)
str(t)
'2009-07-10+18:44:59.193982-07:00'|code-block|syntax|javascript|1411694|只需要使用l_tm+-+u_tm或u_tm+-+l_tm，这取决于您想要显示为来自协调世界时的%2B小时还是-小时。我在MST，这就是-07的来源。更聪明的代码应该能够找出减法的方法。|offset|length|style|CODE|1411695|并且只需要计算一次本地时区。这一点不会改变。至少在您切换到夏令时/夏令时之前。|1411696|entityMap^0|0|0|5|B|H|B|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]|$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|P|$]]

As of python 3.2, using only standard library functions:

<pre><code>u_tm = datetime.datetime.utcfromtimestamp(0)
l_tm = datetime.datetime.fromtimestamp(0)
l_tz = datetime.timezone(l_tm - u_tm)

t = datetime.datetime(2009, 7, 10, 18, 44, 59, 193982, tzinfo=l_tz)
str(t)
'2009-07-10 18:44:59.193982-07:00'
</code></pre>

Just need to use <code>l_tm - u_tm</code> or <code>u_tm - l_tm</code> depending whether you want to show as + or - hours from UTC. I am in MST, which is where the -07 comes from. Smarter code should be able to figure out which way to subtract.

And only need to calculate the local timezone once. That is not going to change. At least until you switch from/to Daylight time.

blocks|key|110514|text|此脚本演示了使用astimezone()显示本地时区的几种方法|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|110515|#!/usr/bin/env+python3

import+pytz
from+datetime+import+datetime,+timezone
from+tzlocal+import+get_localzone

utc_dt+=+datetime.now(timezone.utc)

PST+=+pytz.timezone('US/Pacific')
EST+=+pytz.timezone('US/Eastern')
JST+=+pytz.timezone('Asia/Tokyo')
NZST+=+pytz.timezone('Pacific/Auckland')

print("Pacific+time+{}".format(utc_dt.astimezone(PST).isoformat()))
print("Eastern+time+{}".format(utc_dt.astimezone(EST).isoformat()))
print("UTC+time+++++{}".format(utc_dt.isoformat()))
print("Japan+time+++{}".format(utc_dt.astimezone(JST).isoformat()))

#+Use+astimezone()+without+an+argument
print("Local+time+++{}".format(utc_dt.astimezone().isoformat()))

#+Use+tzlocal+get_localzone
print("Local+time+++{}".format(utc_dt.astimezone(get_localzone()).isoformat()))

#+Explicitly+create+a+pytz+timezone+object
#+Substitute+a+pytz.timezone+object+for+your+timezone
print("Local+time+++{}".format(utc_dt.astimezone(NZST).isoformat()))|code-block|syntax|javascript|110516|它输出以下内容：|110517|$+./timezones.py+
Pacific+time+2019-02-22T17:54:14.957299-08:00
Eastern+time+2019-02-22T20:54:14.957299-05:00
UTC+time+++++2019-02-23T01:54:14.957299%2B00:00
Japan+time+++2019-02-23T10:54:14.957299%2B09:00
Local+time+++2019-02-23T14:54:14.957299%2B13:00
Local+time+++2019-02-23T14:54:14.957299%2B13:00
Local+time+++2019-02-23T14:54:14.957299%2B13:00|110518|在Python3.6中，不带时区对象的astimezone()调用缺省为本地区域(docs)。这意味着您不需要导入tzlocal，只需执行以下操作：|110519|#!/usr/bin/env+python3

from+datetime+import+datetime,+timezone

utc_dt+=+datetime.now(timezone.utc)

print("Local+time+{}".format(utc_dt.astimezone().isoformat()))|110520|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.python.org/3.6/library/datetime.html#datetime.datetime.astimezone^0|8|C|0|0|0|0|J|C|1L|7|15|4|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|16|8|@$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@$9|1B|A|1C|1|1D]]|E|$]]|$1|Q|3|R|5|H|7|1E|8|@]|D|@]|E|$I|J]]|$1|S|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

This script demonstrates a few ways to show the local timezone using <code>astimezone()</code>:

<pre><code>#!/usr/bin/env python3

import pytz
from datetime import datetime, timezone
from tzlocal import get_localzone

utc_dt = datetime.now(timezone.utc)

PST = pytz.timezone('US/Pacific')
EST = pytz.timezone('US/Eastern')
JST = pytz.timezone('Asia/Tokyo')
NZST = pytz.timezone('Pacific/Auckland')

print("Pacific time {}".format(utc_dt.astimezone(PST).isoformat()))
print("Eastern time {}".format(utc_dt.astimezone(EST).isoformat()))
print("UTC time {}".format(utc_dt.isoformat()))
print("Japan time {}".format(utc_dt.astimezone(JST).isoformat()))

# Use astimezone() without an argument
print("Local time {}".format(utc_dt.astimezone().isoformat()))

# Use tzlocal get_localzone
print("Local time {}".format(utc_dt.astimezone(get_localzone()).isoformat()))

# Explicitly create a pytz timezone object
# Substitute a pytz.timezone object for your timezone
print("Local time {}".format(utc_dt.astimezone(NZST).isoformat()))
</code></pre>

It outputs the following:

<pre><code>$ ./timezones.py 
Pacific time 2019-02-22T17:54:14.957299-08:00
Eastern time 2019-02-22T20:54:14.957299-05:00
UTC time 2019-02-23T01:54:14.957299+00:00
Japan time 2019-02-23T10:54:14.957299+09:00
Local time 2019-02-23T14:54:14.957299+13:00
Local time 2019-02-23T14:54:14.957299+13:00
Local time 2019-02-23T14:54:14.957299+13:00
</code></pre>

As of python 3.6 calling <code>astimezone()</code> without a timezone object defaults to the local zone (<a href="https://docs.python.org/3.6/library/datetime.html#datetime.datetime.astimezone" rel="noreferrer">docs</a>). This means you don't need to import <code>tzlocal</code> and can simply do the following:

<pre><code>#!/usr/bin/env python3

from datetime import datetime, timezone

utc_dt = datetime.now(timezone.utc)

print("Local time {}".format(utc_dt.astimezone().isoformat()))
</code></pre>

Let's say I have a variable t that's set to this:

<pre><code>datetime.datetime(2009, 7, 10, 18, 44, 59, 193982, tzinfo=&lt;UTC&gt;)
</code></pre>

If I say <code>str(t)</code>, i get:

<pre><code>'2009-07-10 18:44:59.193982+00:00'
</code></pre>

How can I get a similar string, except printed in the local timezone rather than UTC?

How do I print a datetime in the local timezone?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

假设我有一个变量t，它设置为：datetime.datetime(2009, 7, 10, 18, 44, 59, 193982, tzinfo=<UTC>)如果我说str(t)，我会得到：'2009-07-10 18:44:59.193982+00:00'除了在本地时区而不是UTC中打印之外，我如何获得类似的字符串？

问如何在本地时区中打印日期时间？
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在本地时区中打印日期时间？EN