There's no UI on the HE itself. If you're not viewing the UI on a computer or phone, what are you viewing it on?
That's not always the same time.
HE syncs to ntp. It can drift a few seconds between syncs. If you need it more closely sync'd, try
Cell phones sync to the network, which should be sync'd to a primary time source, so in close agreement with any reasonable ntp server. All major computer OSs support sync'ing to ntp. There's no reason times should differ by more than a few seconds, and I'd expect them to be even closer.
