Bonus Stamina is stamina given by Momo at certain times during the day, every day. The menu can be accessed under Events, in the Long-term tab.
There are two time periods where you can claim stamina. The first time period is 12:00 to 14:00 server time, and the second is 19:00 to 21:00 server time.
|Day of Week||12:00 - 14:00||19:00 - 21:00|