问题描述
限时送ChatGPT账号..文件系统是否将时区信息与文件信息一起存储?我遇到了一个奇怪的错误，我在执行以下代码段时会打印出不同的时区.
Do filesystems store time zone information along with the file information? I ran into a weird bug where I do the following snippet and I get different time zone printed out.
import DateTime #zope's module
for each in os.listdir("director"):
print DateTime.DateTime(os.stat(each)[8])
#Why is it mixed up?
Foo 12:00:00 US/Eastern
Bar 12:00:00 GMT -4
它在进行夏令时更改后开始发生.我看到东部和格林威治标准时间 -4.IIRC Linux 不存储时间戳信息，而是将时间存储为从 1970 年 1 月 1 日起经过的绝对秒数.
It started to happen after Daylight Saving changes were made. I see Eastern and GMT -4 both. IIRC Linux doesn't store the time stamp information, instead it stores time as absolute seconds elapsed from Jan 1st 1970.
某些文件系统是否可能存储时区信息?我被告知 DST(夏令时)是通过使用不同的时区来表示的.那么在夏令时或一般情况下 - 这些元数据是否由文件系统存储?
Is it possible that some file systems store time zone information? I was informed that DST (Daylight Saving Time) is expressed by using different timezones. So in day light saving scenario or in general - are these meta data's stored by file-system?
例如:https://rsync.samba/daylight-savings.htm 指出 FAT 存储夏令时信息.
For eg: https://rsync.samba/daylight-savings.htm points out that FAT stores Daylight Saving Information.
因为根据接受的答案，两者都是相同的时区，是否可以将 GMT -4 显示为东部夏令时以使最终用户真正清楚地了解情况?
Since as per the accepted answer both are same time zones, is it possible to show GMT -4 as Eastern Daylight Savings Time to make things really clear to the end user?
推荐答案
我不知道有任何文件系统可以存储时区信息及其时间戳.根据文件系统/操作系统，它要么以 UTC 时间存储，要么以本地时间存储.
I'm not aware of any file system that store timezone information with their timestamps. Depending on the file system / operating system it's either stored in UTC, or in the local time.
Zope 的 DateTime 将使用您的本地时区，除非您指定其他内容.
Zope's DateTime will use your local timezone unless you specify something else.
美国/东部在夏令时是格林威治标准时间 -4，所以这可能是正确的.
US/Estern is GMT -4 during daylight savings, so this is probably correct.
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