Question

有人可以解释一下吗？仅当时间为1或2时才返回“无效日期”。凌晨3点之后，它会转换为unix时间戳。

[user@localhost ~]$ date --version
date (GNU coreutils) 8.4
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by David MacKenzie.

[user@localhost ~]$ date --date="Sun Mar 10 01:59:00 PDT 2013" +%s
date: invalid date `Sun Mar 10 01:59:00 PDT 2013'

[user@localhost ~]$ date --date="Sun Mar 10 02:59:00 PDT 2013" +%s
date: invalid date `Sun Mar 10 02:59:00 PDT 2013'

[user@localhost ~]$ date --date="Sun Mar 10 03:59:00 PDT 2013" +%s
1362913140

[user@localhost ~]$ date --date="Sun Mar 10 04:59:00 PDT 2013" +%s
1362916740

谢谢！

Answer 1

2013年3月10日美国开始夏令时，当时钟向前移动到凌晨3点。您的时区是PDT - 即太平洋夏令时时间，仅在当天凌晨3点有效。早于此时区是PST - 太平洋标准时间，凌晨2点结束。

Linux日期：无效日期

1 个答案: