Originally Posted by jekyl_hyde
Where was it mentioned their deaths were a year apart? Don't remember seeing that one.
It wasn't, it is simply deduction. Considering he said it was anniversary of both Rin and Kushina's death and it's impossible to be in the same year (since Obito attacked Konoha precisely because of Rin's Death) and between Kakashi Gaiden and the Kyuubi Incident was barely an year, the deaths had to be an year apart, but the problem is that considering both Kakashi and Obito's age and birthdays, Rin's death shouldn't have happened in October, meaning Kishimoto fucked up his timeline.