Re: Date +30 comparison
| From: | Paul M Foster | Date: | Tue, 01 Sep 2009 19:12:08 +0000 |
| Subject: | Re: Date +30 comparison | ||
| References: | 1 2 3 4 5 6 7 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-297575@lists.php.net to get a copy of this message | ||
On Tue, Sep 01, 2009 at 02:47:43PM -0400, Andrew Ballard wrote:
> On Tue, Sep 1, 2009 at 1:27 PM, tedd<tedd.sperling@gmail.com> wrote:
> > First get the date to seconds, like so:
> >
> > $today_date = '8/26/2009';
> >
> > $next_date = strtotime($today_date) + (86400 * 30);
> >
>
> No. Due to Daylight Saving Time, many time zones have two days each
> year when the number of seconds in a day is not 86400.
This and the "2038" bug are reasons to do this type of calculation with
Julian days, as opposed to seconds.
Paul
--
Paul M. Foster