There are different kinds of login bonuses.
Regular Login Bonuses
These are rewards you can acquire each day when you log in.
Consecutive Login Bonuses
These bonuses depend on how many days in a row you log in to the game.
Check the Login Bonus page on the Menu for more information on that month's regular login bonuses and how many days you've logged in.
*The login bonus is refreshed every day at 12:00 a.m. PST
*Login bonuses will be sent to your Presents (Limited).
*Items sent to your Presents (Limited) must be claimed within two weeks or they will be lost. Be sure to claim them as soon as possible.