I'm eyeing something to do with os.date here. but if i get the year from the table it says 1969.
if v is a player whose AccountAge is 2:
>> os.date("*t", v.AccountAge * 86400).year 1969
AccountAge just gives you how many days its been since the player joined Roblox, It does not act like a UNIX timestamp would. Its returning 1969 because that is the UNIX epoch, 1 in a UNIX timestamp. To get the result you want you will need to do some math.
AC stands for AccountAge.
AC/365
Will give you how many years its been since the account was created
((AC/365) - math.floor(AC/365)) * 12
Will give you how many months its been since the account was created, minus the years.
((AC/30) - math.floor(AC/30)) * 30
for the days
To get the UNIX date just subtract each result from the current date.
Now combine these in code
local var = AC/365 .. ((AC/365) - math.floor(AC/365)) * 12 .. ((AC/30) - math.floor(AC/30)) * 30