Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Hournor Digital Alarm Clock Model 8810. This versatile clock features a large display, adjustable brightness, dual alarm functionality, and displays time, date, and indoor temperature. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.
Safety Information
ATTENTION: PLEASE connect with the USB port or ONLY 5V/1A and 5V/2A adapter! Excessive voltage may cause screen damage.
Ensure the clock is placed on a stable, flat surface or securely mounted on a wall. Keep away from water and direct heat sources. Do not attempt to disassemble or repair the device yourself.
Product Overview
Front Display Features
- Large Digital Time Display: Shows hours and minutes clearly.
- AM/PM Indicator: For 12-hour format.
- Dual Alarm Icons: Indicates active alarms.
- Temperature Display: Shows indoor temperature.
- Date Display: Shows month and day.

Figure 1: Front view of the Hournor Digital Clock, highlighting the large time, temperature, and date display.
Top Controls
- SNOOZE/LIGHT Button: Touch-sensitive button for snoozing alarms and adjusting display brightness.

Figure 2: Top view of the clock, indicating the Snooze/Light touch button.
Rear Controls and Ports
- TIME SET Button: For entering time setting mode.
- UP/DOWN Buttons: To adjust values during setting.
- ALARM SET Button: For entering alarm setting mode.
- ON/OFF Button: To turn alarms on or off.
- LIGHT Button: To adjust display brightness.
- 12/24HR Button: To switch between 12-hour and 24-hour time formats.
- °C/°F Button: To switch between Celsius and Fahrenheit temperature units.
- VOLUME Slider: To adjust alarm volume.
- DST ON/OFF Switch: For Daylight Saving Time adjustment.
- DAY/TEMP Button: To cycle between day and temperature display.
- DIMMER Slider: For fine-tuning display brightness.
- USB-C Power Input: For connecting the power adapter.
- USB-A Output: For charging external devices.

Figure 3: Rear view of the clock, detailing the control buttons, sliders, and power/charging ports.
Setup
1. Power Connection
Connect the provided USB-C power adapter to the USB-C input port on the back of the clock. Plug the adapter into a standard wall outlet. Use only a 5V/1A or 5V/2A adapter to prevent screen damage.
2. Battery Backup
The clock has a built-in memory function. In case of a power disconnection, time data will not be lost, eliminating the need to reset the time. No additional batteries are required for this memory function.
3. Initial Time Setting
- Press and hold the TIME SET button on the back of the clock until the hour digits begin to flash.
- Use the UP and DOWN buttons to adjust the hour.
- Press TIME SET again to move to minute adjustment. Use UP and DOWN to set the minutes.
- Continue pressing TIME SET to cycle through setting the year, month, and day, adjusting each with the UP and DOWN buttons.
- Once all settings are complete, press TIME SET one last time to exit the setting mode.
Operating Instructions
Time Format (12/24 Hour)
Press the 12/24HR button on the back of the clock to switch between 12-hour (with AM/PM indicator) and 24-hour time formats.
Alarm Setting
The clock supports dual alarms. Each alarm can be set independently.
- Press and hold the ALARM SET button on the back. The alarm 1 hour digits will flash.
- Use the UP and DOWN buttons to set the desired alarm hour.
- Press ALARM SET again to move to alarm 1 minute adjustment. Use UP and DOWN to set the minutes.
- Repeat steps 1-3 for Alarm 2.
- Press ALARM SET one last time to exit alarm setting mode.
Turning Alarms On/Off
Press the ON/OFF button on the back to toggle alarms on or off. An alarm icon will appear on the display when an alarm is active.
Snooze Function
When an alarm sounds, gently tap the SNOOZE/LIGHT button on the top of the clock to activate a 5-minute snooze. The alarm will sound again after 5 minutes.

Figure 4: Activating the 5-minute snooze by tapping the top of the clock.
Brightness Adjustment
The clock offers 5 levels of brightness and an automatic dimming function.
Manual Brightness
Tap the SNOOZE/LIGHT button on the top or use the LIGHT button on the back to cycle through the 5 brightness levels.
Automatic Brightness
The display brightness automatically adjusts based on the time of day:
- 7:00 - 17:59: Highlight brightness
- 18:00 - 22:59: Medium brightness
- 23:00 - 5:59: Darkest brightness
- 6:00 - 6:59: Medium highlight brightness
Manual adjustments made during a period will be remembered for that specific period on subsequent days. The brightness will revert to the system's preset rule when a new period begins.

Figure 5: Visual representation of the 5 adjustable brightness levels.
Temperature Display (°C/°F)
Press the °C/°F button on the back to switch the temperature display between Celsius and Fahrenheit.
USB Charging Output
The USB-A output port on the back of the clock can be used to charge small electronic devices like smartphones or smartwatches.
Maintenance
To clean the clock, gently wipe the display and casing with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these may damage the surface. Ensure the clock is unplugged before cleaning.
Troubleshooting
- Screen Flicker: If the screen flickers, ensure you are using a 5V/1A or 5V/2A USB adapter. Excessive voltage can cause screen damage.
- Time Not Saving: The clock has a built-in memory function. If time settings are not retained after a power outage, ensure the internal battery backup is functioning correctly.
- Alarm Not Sounding: Verify that the alarm is set correctly and the alarm volume is not set to the lowest level.
Specifications
| Feature | Detail |
|---|---|
| Brand | Hournor |
| Model Number | 8810 |
| Color | Black Case+blue Digit |
| Display Type | Digital |
| Power Source | Corded Electric (USB-C) |
| Product Dimensions | 10.4 x 1.5 x 2.8 inches |
| Item Weight | 11.7 ounces |
| Alarm Clock | Yes (Dual Alarms) |
| Mounting Type | Desk Clock, Wall Mount |
Official Product Videos
Digital Alarm Clock Large Display Overview
This video provides a general overview of the Hournor Digital Alarm Clock's large display and key features.
KOSUMOSU Alarm Clocks for Living Room, 6.7in Digital Clock
This video demonstrates the features and functionality of a similar digital clock, showcasing its suitability for living room environments.
Warranty and Support
This product comes with a Manufacturer's Warranty. For specific warranty details or technical support, please refer to the contact information provided with your product packaging or visit the official Hournor website.