Thiswas a problemforsailors, whosetimepiecesoftengot D calibratedatsea.
Intheearly 18 hundreds, anofficialintheRoyalNavysuggestedusing a visualonshore.
Sotheyput a ballontopof a flagandraisedup a secondball a fewminutesbefore 12 whenlightpassedbetweenthetwosailorssettheirclockstonew, eventuallyselfwindingclocksandothernewtechmadethesetimeballsunnecessary.
Fastforward.
A fewyears, TheNewYorkTimesrelocatestowhatisnowTimesSquaretocelebrate.