Little bit controversial post - does not matter that much, few miliseconds either way, consistency is more important. just think what those clocks are used for

Little bit controversial post - does not matter that much, few miliseconds either way, consistency is more important. just think what those clocks are used for inside of your hardware and you get your answer. even "old" time signals like DCF77, WWV.... are sufficient enough for home lab. they can be heard even inside of a buildings, where GPS can have problems. And you can think about RTK signal as a signal in this more available signal category. Most strange thing to me is that i have to set correct time in long wave radios (receiver), when they can just receive any of all those time signals.