Hi Weiner,
I'm Christine, an independent advisor and a Windows user like you. I'll be more than happy to assist you today!
Seems you cannot see the Philippines under TimeZone Settings. No worries, I feel you, got the same issue before. But I figured out that I just need to set it to UTC+08:00 Kuala Lumpur, Singapore.
They have the same time just like to Philippines. And that should do the trick!
I know that it would be easier if Philippines is in the option, I agree with you.
If you want to express your opinion on this you may be able to help Microsoft improve this product/experience by using the Feedback Hub in Start Menu, especially if you are comfortable with sharing relevant data and screen recordings. Microsoft developers DO read feedback from customers that comes in via the Feedback Hub, so that is a great way to share your thoughts on how to better serve you as a customer.
https://support.microsoft.com/en-us/windows/sen...
Thank you,
Christine L
Independent Advisor