To sign an online petition for St. Faustina to be a Doctor of the Church: https://secure.marianweb.net/thedivinemerc…/doctor/index.php?
Jesus tells St. Faustina regarding the 3 o'clock hour:
"In this hour, I will refuse nothing to the soul that makes a request of Me in virtue of My passion. This is the hour of great mercy for the whole world." (1320)