Timezone not correct even after setting php.ini

Question

Timezone difference cause my civicrm site showing wrong membership date.

For example:

• Payment Date: Today 10am
• Membership start date: Yesterday

I made below timezone setting in drupal (admin/config/regional/settings):

• Default Timezone: Asia Kuala Lumpur
• Uncheck tick box of "Users may set their own time zone"

In php.ini, I added below line:

date.timezone = "Asia/Kuala_Lumpur"

But the timezone problem still occurs. Am I missing any configuration? Or is there any place I can force timezone to be Asia/Kuala_Lumpur ?