When does the 3-month holding period start for the 800K baht requirement after a retirement visa extension?

The 3-month holding period for the 800K baht requirement after obtaining the annual extension of a retirement visa starts from the day the extension is granted, not from the expiration date of the previous extension. This is confirmed by multiple comments stating that the holding period begins the day the extension is granted, which is typically the same day as the application or the following day.