Re: date bug

[Eric Blake]

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According to David Cermak on 8/22/2006 7:16 AM:
> Hello,
> as i really can't believe that it looks like a bug:
> 
> address@hidden:~$ date -d "01/01/1830" +"%s"
> date: invalid date `01/01/1830'

This is due to limitations on platforms where time is tracked as a 32-bit
number of seconds since 1970; 1830 is just too far away (just as dates
beyond 2038 are too far in the other direction).  It is not really a bug.

> 
> that's ok, but >
> 
> address@hidden:~$ date -d "01/01/1902" +"%s"
> -2145920400
> address@hidden:~$ date -d "01/01/1901" +"%s"
> -2147483648
> address@hidden:~$ date -d "01/01/1900" +"%s"
> -2147483648
> 
> address@hidden:~$ date -d "01/01/1900"
> Fri Dec 13 21:45:52 CET 1901
> address@hidden:~$ date -d "01/01/1902"
> Wed Jan  1 00:00:00 CET 1902
> address@hidden:~$ date -d "01/01/1901"
> Fri Dec 13 21:45:52 CET 1901

What version are you using?  It seems like you need to upgrade.  With
5.97, I get:

$ date -d "01/01/1900"
date: invalid date `01/01/1900'
$ date -d "01/01/1901"
date: invalid date `01/01/1901'
$ date -d "01/01/1902"
Wed Jan  1 00:00:00 MST 1902
$ date -d "01/01/1900" +%s
date: invalid date `01/01/1900'
$ date -d "01/01/1901" +%s
date: invalid date `01/01/1901'
$ date -d "01/01/1902" +%s
- -2145891600

- --
Life is short - so eat dessert first!

Eric Blake             address@hidden
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