Sharp Atomic Clock Spc373 User Manual Updated Jun 2026

: Press the TIME button once until the time zone flashes. Use the UP/DOWN (or Hour) buttons to cycle to your local zone (e.g., Eastern, Central, Mountain, Pacific) and press TIME again to confirm.

Atomic Sync, Indoor Temperature, Calendar, Alarm/Snooze.

The Sharp SPC373 offers a high-visibility LCD screen that packs several key data points into one interface. Understanding the display icons will help you navigate your clock easily. Key Features

| Button | Primary Function | Secondary/Long Press | | :--- | :--- | :--- | | | Enter time/date settings | Toggle between 12/24 hour mode | | ▲ (UP) | Increase value / Manual time zone | Change temperature (°C/°F) | | ▼ (DOWN) | Decrease value / View alarm time | Toggle DST (Daylight Saving) On/Off | | SNOOZE | Dim backlight / Snooze alarm | Touch to illuminate for 5 seconds | | WAVE | Manually force WWVB signal reception | N/A | sharp atomic clock spc373 user manual

Temperature reading is wrong. Solutions:

| Pros | Cons | |------|------| | ✅ Truly set-and-forget once synced | ❌ No manual time setting – useless if atomic signal fails | | ✅ Large, easy-to-read digits | ❌ 12-hour only – no 24-hour mode | | ✅ Auto DST adjustment | ❌ No backlight always-on option | | ✅ Affordable (~$20–$25 USD) | ❌ Flimsy plastic stand (manual advises “gentle handling”) |

To turn the alarm off completely until the next day, press any button on the back of the clock while the alarm is ringing. Changing Temperature Units (Celsius/Fahrenheit) : Press the TIME button once until the time zone flashes

Press the button again to save the current selection and move to the next setting. Setting Sequence

: Once the battery is in, the clock will begin searching for the atomic signal (indicated by a tower or wave icon). It is best to place it near a window overnight for the strongest reception. cdn.prod.website-files.com Manual Time Setting

Press and hold the button for 3 seconds until the year digits begin flashing. Press the UP or DOWN buttons to adjust the year. Press TIME SET again to confirm. The month will flash. Use UP / DOWN to change the month, then press TIME SET . Repeat this process to set the Date , Hour , and Minute . Press TIME SET one final time to exit setup mode. Step 3: Daylight Saving Time (DST) Switch On the back of the clock, locate the DST slide switch. The Sharp SPC373 offers a high-visibility LCD screen

Use UP or DOWN to adjust the calendar day. Press SET to confirm.

button to cycle through US time zones (Pacific, Mountain, Central, Eastern) until the correct one flashes on the map icon. Daylight Saving Time (DST)

Features a progressive wake-up alarm with a snooze function.