Hi all 
i wanna buy battlechest 5.0 from stationary shop near me
please tell me did 30days playing time from chest its still working?
I don’t know what that battlechest is. 5.0 was Mists of Pandaria, which is now free for everyone.
The Battlechest is the boxed copy of World of Warcraft you can buy in stores. Version 5.0 (and 6.0) should be the double wide golden one (says “your quest begins here” on the cover) that was on sale up until they recently replaced it with the New Player Experience edition.
A blue would need to confirm if those old account creation codes still count as 30 day game time for a new account, but I can tell you from personal experience that they will not count as game time for an existing account (this is also true for the New Player Experience version).
check on battlechest box if there is any expiration date, if not then it should work i suppose, i think codes are unique enough to not get expired ever.
Unless there is a stated expiry date it should still be usable, though as Pulsenectar mentioned, only to create a new WoW account with the included game time active. Details here:
https://eu.battle.net/support/en/article/000010879