How early does ticket sale start?

[Melrose]

I've looked in this topic, but I couldn't find a specific answer to my question (or I must have missed it), but, how early does ticket sale generally start for gigs in Japan? Is it like 30 days before the gig, 60 days before the gig, etc.?

Because I think that getting tickets early in resale as well is better than later, because later mostly only bad tickets or good tickets at ridiculous prices will be left. (Excluding really cheap tickets right before the concert, but that's a little too risky for my taste.)

Thanks in advance. ^^