There are probably hundreds of thousands of devices out there that are smart enough to know about time zones but old enough that there no chance of a software update, for example APC UPSs and power strips used in data centres world wide and years beyond end of support.
There are probably hundreds of thousands of devices out there that are smart enough to know about time zones but old enough that there no chance of a software update, for example APC UPSs and power strips used in data centres world wide and years beyond end of support.