If desired, choose a time zone to apply to the alarm. This time zone is used for all dates and times relating to this alarm, including recurrence and exception dates and times. Normally, you should leave the time zone controls unchanged unless you have a good reason to change them.
Escolla a zona horaria que se ha aplicar á alarma. Esta zona horaria utilízase para todas as datas e horas relacionadas con esta alarma, incluídas as datas e horas de repetición e excepción. Normalmente, non debería modificar os controles de zona horaria a non ser que teña razóns para facelo.