Hi @anon24705801 and welcome to our Community Forum!
Tasks can’t technically be archived in Asana (although there are some workarounds available Archiving tasks - hack - #8 by Katie_Reynolds), but I don’t believe custom Rules can allow you to move a task based on how old the said task is!
@abass, @Bastien_Siebman, @lpb, @lpb, any idea if this possible with Zapier?