3 ms·
Not all of these sources come through the Internet. Think GPS, GSM, radio time signals (DCF-77 or the likes).
by datenwolf 7y ago
Not all of these sources come through the Internet. Think GPS, GSM, radio time signals (DCF-77 or the likes).
- misterkgb 7y agoThose solutions all require additional hardware - hardware that's far more expensive than an on-board real-time clock and battery.