Date picker issue

Ce fil est résolu. Voici une description du problème et la solution proposée.

Problem:

The date picker was displaying a date one day earlier than the date selected in the calendar (e.g., selecting Feb 4 showed Feb 3 in the input field), even though the WordPress timezone was set correctly. The issue occurred both on localhost and on the production site.

Solution:

The issue was caused by a global date_default_timezone_set('Asia/Manila') call introduced by the QuickBooks PHP SDK. Setting the PHP default timezone to a non-UTC value affected the JavaScript/PHP date handling used by the date picker, resulting in an off-by-one-day shift. Removing this call or keeping the default timezone as UTC resolved the issue and restored correct date selection behavior.

This support ticket is created Il y a 4 months. There's a good chance that you are reading advice that it now obsolete.

This is the technical support forum for Toolset - a suite of plugins for developing WordPress sites without writing PHP.

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Ce sujet contient 1 reply, a 1 voix.

Dernière mise à jour par raffyC Il y a 4 months.

Assisté par: Christopher Amirian.

Auteur

Publications

February 4, 2026 at 2:09 am #2846308

raffyC

Hi,

The date picker is showing 1 day before of the selected date in calendar. For example, in the screenshot I selected Feb 4 (today) but shows Feb 3 in the field.
The timezone in WordPress is correct. I tried setting date_default_timezone_set('Asia/Manila'); in functions.php but it didn't work.

It happens in localhost and on the production site.

Thank you.

February 4, 2026 at 6:54 am #2846355

Christopher Amirian

Supporter

Les langues: Anglais (English )

Hi,

Thank you for the report. May I ask you to test the same thing on a clean installation below and see if the problem happens there too?

lien caché

If yes, please give me the link to the page where you managed to replicate the problem.

If the same thing is not possible to replicate on a clean installation, please start by testing a minimal installation on a staging version of your website:

- IMPORTANT STEP! Create a backup of your website. Or better approach will be to test this on a copy/staging version of the website to avoid any disruption of a live website.
- Switch to the default theme such as "TwentyTwenty" by going to "WordPress Dashboard > Appearance > themes".
- Go to "WordPress Dashboard > Plugins" and deactivate all plugins except:
. Toolset plugins.
- Check if you can still recreate the issue.
- If not, re-activate your plugins one by one and check the issue each time to find out the plugin that causes the problem.

Thanks.

February 4, 2026 at 7:38 am #2846360

raffyC

Thanks. I found the issue is when I set date_default_timezone_set('Asia/Manila') in Quickbooks PHP SDK the datepicker gets 1 day before, it's works fine if UTC or not set.