IP Clocks IP Clocks are modern, flexible, easy to install, and utilize new or existing network infrastructures. IP Clocks Each IP clock or IP Clock with speaker simply plugs into a PoE network switch. All communications and power is provided with this single PoE port which makes installation fast and simple. Set-up and programming is software controlled and managed. All clock correction is controlled by Network Time Protocol (NTP). Options include every time zone, off-set time for special applications, analog face, and digital face with hours and minutes or hours, minutes, and seconds. Clock + speaker combo devices only require a single network PoE port and function as both an intercom speaker and one-way public address broadcast. Many different styles, sizes, and types are available. IP clocks can be used stand alone, or included in public address and intercom systems. Static and DHCP are both supported and can display in many different formats including military style. Daylight savings time can be automated or turned off in areas such as Puerto Rico, Arizona, Hawaii, Northern Marina Islands, U.S. Virgin Islands, American Samoa, and Guam in which DST is not observed.