[Bug libc/6005] New: Date doesn't show 1 day before if it's about to change timezone

[Bug libc/6005] New: Date doesn't show 1 day before if it's about to change timezone

[shinden at linux dot pl]

Date show time off by 1 hour, if at previous day it's was timezone change. E.g.:

sh@hoth:~/ > date
Mon Mar 31 00:43:49 CEST 2008
sh@hoth:~/ > date -d '1 day ago'
Sat Mar 29 23:43:47 CET 2008
sh@hoth:~/ > date -d '2 hours ago'
Sun Mar 30 22:44:58 CEST 2008
sh@hoth:~/ > date --version
date (GNU coreutils) 6.10

But, if it's past 01:00 day after timezone change, it shows correct time:

sh@hoth:~/ > date
Mon Mar 31 01:35:00 CEST 2008
sh@hoth:~/ > date -d '1 day ago'
Sun Mar 30 00:35:02 CET 2008

I can see in logs that timezone was changed at 2:00 to 3:00. This is glibc-2.7.
Older glibc (2.3.5) and coreutils (5.2.1) doesn't have this bug.
It looks like it internally change date at midnight, not 2:00. It should display
missing hour according to timezone.

-- 
           Summary: Date doesn't show 1 day before if it's about to change
                    timezone
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: shinden at linux dot pl
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=6005

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.

[Bug libc/6005] Date doesn't show 1 day before if it's about to change timezone

[shinden at linux dot pl]

------- Additional Comments From shinden at linux dot pl  2008-03-31 17:50 -------
Past 1:00 it shows incorrect date still, my mistake.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=6005

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.

[Bug libc/6005] Date doesn't show 1 day before if it's about to change timezone

[drepper at redhat dot com]

------- Additional Comments From drepper at redhat dot com  2008-04-08 00:45 -------
You have to provide a test program using only glibc functions.  I won't hunt
down problems in external programs like date.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING


http://sourceware.org/bugzilla/show_bug.cgi?id=6005

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.

[Bug libc/6005] Date doesn't show 1 day before if it's about to change timezone

[pasky at suse dot cz]

------- Additional Comments From pasky at suse dot cz  2010-06-01 03:41 -------
Frankly, I don't even get at all from the original report what the problem was,
the information shown looks correct to me.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID


http://sourceware.org/bugzilla/show_bug.cgi?id=6005

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.