Evening Everyone.

After nearly 18 Months of planning were approaching the ~2 weeks before departure part of my flight checking. Does anyone have any data points on what time JAL releases their extra award F or Business seats in the 2 weeks leading up to Day 0? Is it seemingly random or does it cycle like the award seats releasing at midnight ? And with the time change I cannot keep up when whether that would be 12am or 1am EST for the day turnover and new seat release...