1936 #Poland The speaking clock at the Main Post Office in Kraków, on the corner of Potocki and Wielopole Streets.A speaking clock is a telephone service that provides the exact current time when you call a designated number.It was once an essential tool before digital clocks and smartphones became common.The recorded voice—often of a radio announcer—would announce the time precisely, synchronized with official standards.Today, most speaking clocks are historical curiosities, but some still operate as reminders of early telecommunication technology.#telephony #history #ntp #ntps #time #timeseries #phones #telecomunication #krakow #europe Licence: Public DomainSygnatura: 3/1/0/8/5329Data/Okres powstania: 1936/07