Comment Re:BlueHammer ot a zero day (Score 1) 54
if it's not patched at the time of release, it's a zero day.
You didn't read your own link. When Microsoft (or the users in general) finds out about the vulnerability, that is day 1. Before that is day zero.
If Microsoft found out about the exploit on the third of April, then that was day one.
Then day two was April 4th.
Day three was April 5th.
Etc. you should be able to do this kind of math.