09-30-2008
Quote:
Originally Posted by
komala
Hi,
Could you please let me know the command to change my date /time beyond few days back. Currently when i am trying the below commands able to go beyond one day at max.
-->date
-->Mon Sep 29 19:31:58 EST 2008
-->export TZ=TMP40:00:00 (Changing the date beyond 40 hours)
-->Sun Sep 28 09:32:24 TMP 2008 (date changed back upto 34 Hours, even though i mentioned above as 40 hours)
-->export TZ=TMP90:00:00 (Changing the date beyond 90 hours)
-->Sun Sep 28 09:32:42 TMP 2008 (date changed back upto 34 Hours, even though i mentioned above as 90 hours).
So looking for date change command in linux (Linux melrhtest4.nmh-au 2.6.18-8.el5 #1 SMP Fri Jan 26 14:15:14 EST 2007 x86_64).
Thanks.
Be careful when taking time backwards on UNIX servers. The timestamps are all absolute for the beginning of the epoch (number of seconds since 1970).
the system can get into a mess by doign this because it can take a look at a file and find that it has now been created in the future!
Why do you need to wind the clock back? - unless, of course, it is to bypass licensing issues?
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LEARN ABOUT PHP
px_date2string
PX_DATE2STRING(3) PX_DATE2STRING(3)
px_date2string - Converts a date into a string.
SYNOPSIS
string px_date2string (resource $pxdoc, int $value, string $format)
DESCRIPTION
Turns a date as it stored in the paradox file into human readable format. Paradox dates are the number of days since 1.1.0000. This func-
tion is just for convenience. It can be easily replaced by some math and the calendar functions as demonstrated in the example below.
PARAMETERS
o $pxdoc
- Resource identifier of the paradox database as returned by px_new(3).
o $value
- Value as stored in paradox database field of type PX_FIELD_DATE.
o $format
- String format similar to the format used by date(3). The placeholders support by this function is a subset of those supported by
date(3) (Y, y, m, n, d, j, L).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Turn a paradox date into a human readable form
<?php
$px = px_new();
/* make up a date as it could be stored in */
/* a date field of a paradox db. */
/* 700000 days since 1.1.0000. */
$days = 700000;
/* Use the calendar functions to print a */
/* human readable format of the date */
echo jdtogregorian($days+1721425)."
";
/* px_date2string() outputs the same */
echo px_date2string($px, $days, "n/d/Y")."
";
px_delete($px);
?>
The above example will output:
7/15/1917
7/15/1917
SEE ALSO
px_timestamp2string(3), jdtogregorian(3).
PHP Documentation Group PX_DATE2STRING(3)