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Full Discussion: Invalid date
Top Forums UNIX for Advanced & Expert Users Invalid date Post 303023976 by MadeInGermany on Wednesday 26th of September 2018 03:06:47 PM
Old 09-26-2018
Now I see, you want 1 day less than a given date.
It should work. I successfully checked with several versions of GNU date.
If even
Code:
date +"%Y%m%d" --date "20180812 - 1 day"

does not work, then I suspect a bug in your date program.

Last edited by MadeInGermany; 09-26-2018 at 04:22 PM..
 

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DATETIMEIMMUTABLE.FORMAT(3)						 1					       DATETIMEIMMUTABLE.FORMAT(3)

DateTime::format - Returns date formatted according to given format

       Object oriented style

SYNOPSIS
public string DateTime::format (string $format) DESCRIPTION
string DateTimeImmutable::format (string $format) string DateTimeInterface::format (string $format) Procedural style string date_format (DateTimeInterface $object, string $format) Returns date formatted according to given format. PARAMETERS
o $object -Procedural style only: A DateTime object returned by date_create(3) o $format - Format accepted by date(3). RETURN VALUES
Returns the formatted date string on success or FALSE on failure. EXAMPLES
Example #1 DateTimeImmutable.format(3) example Object oriented style <?php $date = new DateTime('2000-01-01'); echo $date->format('Y-m-d H:i:s'); ?> Procedural style <?php $date = date_create('2000-01-01'); echo date_format($date, 'Y-m-d H:i:s'); ?> The above example will output: 2000-01-01 00:00:00 NOTES
This method does not use locales. All output is in English. SEE ALSO
date(3). PHP Documentation Group DATETIMEIMMUTABLE.FORMAT(3)
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