Clock System Products

The core strength of the National Time clock line is versatility. We can help control existing clock systems and assimilate to existing master clocks regardless of manufacturer with few exceptions. We offer the ability to add or extend existing clock systems. We specialize in optimizing the correct style of clocks in the most advantageous formats. Often combining wired and WiFi clocks both analog and digital including battery powered WiFi clocks in one building. This capability assures your buildings best solution for service life, functionality and lowest burdened cost per dollar spent.

Wired Clocks

National Time’s wired clock systems have been the backbone of daily operations in K-12, Higher Education, Hospital and Industrial facilities for over seven decades. They remain the number one synchronized clock solution due to their extended service life and nominal cost of operation.


Wired Analog

  • Rotary Drive Synchronous
    Rotary Drive Synchronous

  • Spectrum Wired Clocks
    Spectrum Wired Clocks

  • EX Series Synchronous
    EX Series Synchronous

  • Rotary Drive Impulse
    Rotary Drive Impulse

  • Open Faced Clocks
    Open Faced Clocks


Wired Digital

  • DLX225 / DLX400 Series
    DLX225 / DLX400 Series

  • DLU225 / DLU400 Series
    DLU225 / DLU400 Series

  • DLU225-6 / DLU400-6 Series
    DLU225-6 / DLU400-6 Series

  • Elapsed Timers
    Elapsed Timers


Master Clocks and Other Accessories

  • MC100 Master Clock
    MC100 Master Clock

  • MC100 - Rack Mount
    MC100 - Rack Mount

  • MC100 Weather Proof
    MC100 Weather Proof

  • ET Series Master Clocks
    ET Series Master Clocks

  • MC3 Master Clock
    MC3 Master Clock

  • WeMC3 Master Clock
    WeMC3 Master Clock

  • WeNC Master Clock
    WeNC Master Clock

  • LAN Interface
    LAN Interface

  • Accessories
    Accessories



Wireless Clocks

National Time & Signal pioneered the use of Wi-Fi technology in clock systems. Today, we offer a complete line of analog and digital wireless clocks, including completely wireless battery-powered Wi-Fi analog clocks. Learn more here, or check out our product offerings below.

TimeCast™ Dual-Mode RF/Wi-Fi Clocks

TimeCast clocks seamlessly switch between radio frequency and Wi-Fi standards-based time synchronization depending on the needs of your facility.

  • TimeCast™ Analog Clocks
    TimeCast™ Analog Clocks

  • TimeCast™ Digital Clocks
    TimeCast™ Digital Clocks

  • TimeCast™ Base Station
    TimeCast™ Base Station


Wi-Fi Clocks

  • Spectrum WiFi Clocks
    Spectrum WiFi Clocks

  • DW Digital Series
    DW Digital Series


TIMEWiSE Supervision Server

  • TIMEWiSE Supervision Server
    TIMEWiSE Supervision Server