2 ms·https://en.m.wikipedia.org/wiki/Clock_of_the_Long_Now https://en.m.wikipedia.org/wiki/Clock_of_the_Long_Nowby sceadu 2y agohttps://en.m.wikipedia.org/wiki/Clock_of_the_Long_Now https://en.m.wikipedia.org/wiki/Clock_of_the_Long_Now