civicrm_cache.created_date is using 12H time

Noticed while debugging fix for CRM-10264 that CRM_Core_BAO_Cache::setItem() was creating all cache entries in hours 0-12, as it used date('Ymdhis') not date('YmdHis'). This was not an issue while cache lifetimes were measured in days.

To verify that all your CiviCRM cache entries were created in the AM -

SELECT DISTINCT EXTRACT(HOUR FROM created_date) FROM civicrm_cache;