关于纪元时间的问题 [英] Question on epoch time
问题描述
纪元时间是自1970年1月1日以来经过的秒数
在我的时区或按照UTC?我的意思是,如果A'的节目在Melboune打电话给
时间()而B'的节目打电话给蒙特利尔的时间()
AT这非常非常,他们会返回相同的值,或者A'的
程序返回的值超过B'的值36000(因为
Melboune比蒙特利尔早10个小时。)
谢谢,
Anil
Is the epoch time the number of seconds elapsed since January 1st 1970
in my timezone or as per UTC? I mean, if A''s program makes a call to
time() in Melboune and B''s program makes a call to time() in Montreal
AT THIS VERY INSTANT, will they return the same values, or will A''s
program return a value that is more than B''s value by 36000 (since
Melboune is 10 hours ahead of Montreal).
Thanks,
Anil
推荐答案
7月20日下午2:48,使用... @ sta.samsung.com写道:
On Jul 20, 2:48 pm, use...@sta.samsung.com wrote:
纪元时间是多少?自1970年1月1日起经过的秒数
在我的时区或UTC?我的意思是,如果A'的节目在Melboune打电话给
时间()而B'的节目打电话给蒙特利尔的时间()
AT这非常非常,他们会返回相同的值,或者A'的
程序返回的值超过B'的值36000(因为
Melboune比蒙特利尔早10个小时。
谢谢,
Anil
Is the epoch time the number of seconds elapsed since January 1st 1970
in my timezone or as per UTC? I mean, if A''s program makes a call to
time() in Melboune and B''s program makes a call to time() in Montreal
AT THIS VERY INSTANT, will they return the same values, or will A''s
program return a value that is more than B''s value by 36000 (since
Melboune is 10 hours ahead of Montreal).
Thanks,
Anil
对不起,我的意思是提前14个小时。
Sorry, I meant 14 hours ahead.
< us **** @ sta.samsung.comwrote in message
新闻: 11**********************@n2g2000hse.googlegro ups.com ...
<us****@sta.samsung.comwrote in message
news:11**********************@n2g2000hse.googlegro ups.com...
Is 1970年1月1日以来经过秒数的纪元时间
我的时区或按UTC计算的
?我的意思是,如果A'的节目在Melboune打电话给
时间()而B'的节目打电话给蒙特利尔的时间()
AT这非常非常,他们会返回相同的值,或者A'的
程序返回的值超过B'的值36000(因为
Melboune比蒙特利尔早10个小时。
Is the epoch time the number of seconds elapsed since January 1st 1970
in my timezone or as per UTC? I mean, if A''s program makes a call to
time() in Melboune and B''s program makes a call to time() in Montreal
AT THIS VERY INSTANT, will they return the same values, or will A''s
program return a value that is more than B''s value by 36000 (since
Melboune is 10 hours ahead of Montreal).
< OT>
这取决于,因为这是特定于实现的。
POSIX纪元定义为1970年1月1日00:00:00 UTC。这就是为什么西半球的人们偶尔会看到1969年12月31日在奇怪的地方的日期。
DOS / Windows时代是,IIRC, 1980年1月1日00:00:00在当地时区。
< / OT>
依靠那里甚至_being_一个纪元,或者一个time_t看起来像是你想要的
,是不可取的。
S
-
Stephen Sprunk那些认为他们知道一切的人
CCIE#3723对我们这些人来说是一个很大的烦恼。
K5SSS --Isaac Asimov
-
通过 http://www.teranews.com
<OT>
It depends, since that''s implementation-specific.
The POSIX epoch is defined as 1 Jan 1970 00:00:00 UTC. That''s why folks in
the Western Hemisphere occasionally see dates of 31 Dec 1969 in odd places.
The DOS/Windows epoch is, IIRC, 1 Jan 1980 00:00:00 in the local timezone.
</OT>
Relying on there even _being_ an epoch, or that a time_t looks anything like
you expect, is unportable.
S
--
Stephen Sprunk "Those people who think they know everything
CCIE #3723 are a great annoyance to those of us who do."
K5SSS --Isaac Asimov
--
Posted via a free Usenet account from http://www.teranews.com
us **** @ sta.samsung.com 写道:
纪元时间是秒数自1970年1月1日起经过
在我的时区或按照UTC?我的意思是,如果A'的节目在Melboune打电话给
时间()而B'的节目打电话给蒙特利尔的时间()
AT这非常非常,他们会返回相同的值,或者A'的
程序返回的值超过B'的值36000(因为
Melboune比蒙特利尔早10个小时。
Is the epoch time the number of seconds elapsed since January 1st 1970
in my timezone or as per UTC? I mean, if A''s program makes a call to
time() in Melboune and B''s program makes a call to time() in Montreal
AT THIS VERY INSTANT, will they return the same values, or will A''s
program return a value that is more than B''s value by 36000 (since
Melboune is 10 hours ahead of Montreal).
http ://en.wikipedia.org/wiki/Epoch_(reference_date )
http://en.wikipedia.org/wiki/Unix_time
相当完整的概述,以及历史的奇特。如何
人类用时间值计算是一个有趣的问题需要解决
有时候。
-
clvrmnky< mailto:sp **** **@clevermonkey.org>
直接回复将被列入黑名单。用我的na替换spamtrap我要
直接与我联系。
http://en.wikipedia.org/wiki/Epoch_(reference_date)
http://en.wikipedia.org/wiki/Unix_time
Pretty complete overview, along with the historical oddities. How
humans compute with time values is an interesting problem to solve
sometimes.
--
clvrmnky <mailto:sp******@clevermonkey.org>
Direct replies will be blacklisted. Replace "spamtrap" with my name to
contact me directly.
这篇关于关于纪元时间的问题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!