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date: invalid date `19010101'

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# 1  
Old 01-21-2009
date: invalid date `19010101'
why
date -d "19010101" gets error " date: invalid date `19010101' "

but
date -d "19020101" is fine?

Any approach to fix that?
Thank you.
# 2  
Old 01-21-2009
I guess it depends on which version of the date program you have:

Code:
$ date --version
date (coreutils) 5.2.1
Written by David MacKenzie.

Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ date -d "19010101"
Tue Jan  1 00:00:00 EST 1901

# 3  
Old 01-21-2009
haha, just tried.. same issue..

Code:
-bash-3.00$ date --version
date (coreutils) 5.2.1
Written by David MacKenzie.

Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-bash-3.00$ date -d "19010101"
date: invalid date `19010101'
-bash-3.00$ date -d "19020101"
Wed Jan  1 00:00:00 CST 1902

# 4  
Old 01-21-2009
32 bit vs 64 bit time_t values - probably why.
# 5  
Old 01-21-2009
You're probably right.


Code:
$ uname -p -o -i
x86_64 x86_64 GNU/Linux

$ date --version
date (coreutils) 5.2.1
Written by David MacKenzie.

Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ date -d "19020101"
Wed Jan  1 00:00:00 EST 1902

# 6  
Old 01-21-2009
Quite possibly.

Code:
-bash-3.00$ uname -p -o -i
i686 i386 GNU/Linux
-bash-3.00$ date --version
date (coreutils) 5.2.1
Written by David MacKenzie.

Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-bash-3.00$ date -d "19020101"
Wed Jan  1 00:00:00 CST 1902

# 7  
Old 01-21-2009
EL5.2 64bit
Code:
# date -d "19010101"
Tue Jan  1 00:00:00 MST 1901

# uname -a
Linux localhost.localdomain 2.6.18-92.el5 #1 SMP Fri May 23 23:40:43 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux

# date --v
date (GNU coreutils) 5.97
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by David MacKenzie.
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