Introduction
Thank you for purchasing the Marathon Night Owl Projection Clock. This compact and versatile clock is designed to provide convenient time-telling with its unique 180-degree projection feature, clear backlit display, and essential functions like alarm, date, and indoor temperature. This manual will guide you through the setup, operation, and maintenance of your new clock.

Image: The Marathon Night Owl Projection Clock, showing its main display with time, date, and temperature, along with the time projected onto a surface above it.
Important Safety Information
- Do not expose the unit to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the clock to strong impacts.
- Use only the specified power adapter (100V-240V) or 3 AAA batteries.
- Keep out of reach of children.
- Do not attempt to disassemble or repair the unit yourself. Contact qualified service personnel.
Package Contents
Please check the package for the following items:
- Marathon Night Owl Projection Clock (CL030086BK)
- USB Power Cable
- 3 x AAA Batteries
- User Manual (this document)
Product Overview
Familiarize yourself with the various parts of your Marathon Night Owl Projection Clock.

Image: Front view of the clock, showing the main display and the projection arm.
Key Components:
- Main Display: Shows time, date, day of the week, and indoor temperature.
- Projection Arm: Pivots 180 degrees to project time onto a wall or ceiling.
- Control Buttons: (Located under battery cover) For setting time, date, alarm, etc.
- Power Input: USB port for external power.
- Battery Compartment: For 3 AAA batteries (backup power).

Image: Diagram illustrating the compact design and dimensions of the clock (approx. 14.5 cm width, 8.6 cm height).
Setup
1. Power Connection
Your clock can be powered by either the included USB power cable (with a compatible AC adapter, not always included) or 3 AAA batteries.
- Using USB Power: Connect the USB power cable to the clock's power input and plug the other end into a compatible USB power adapter or a USB port. This allows for continuous backlight and projection.
- Using Batteries: Open the battery compartment cover on the back of the clock. Insert 3 AAA batteries, ensuring correct polarity (+/-). Batteries provide backup power and enable temporary backlight/projection activation.
2. Initial Settings (Time, Date, Temperature Unit)
To access the setting buttons, you will need to remove the battery compartment cover on the back of the unit. This is where the main setting buttons are located.
- Accessing Settings: Carefully remove the battery cover on the back of the clock to reveal the setting buttons.
- Set Time: Press the "TIME SET" button (or similar, inferring from common clock controls). Use the "UP" and "DOWN" buttons to adjust the hour and minute. Press "TIME SET" again to confirm and move to the next setting.
- Set Date: After setting the time, you can set the year, month, and day using the "UP" and "DOWN" buttons and confirming with the "DATE SET" button (or similar).
- Set Temperature Unit: Press the "°C/°F" button (or similar) to toggle between Celsius and Fahrenheit for the indoor temperature display.
- Replace Cover: Once all settings are complete, carefully replace the battery compartment cover.
Operating Instructions
Display and Backlight
- Main Display: The large LCD screen continuously shows the current time, month, day, day of the week, and indoor temperature.
- Backlight Adjustment (USB Power): When powered by the USB cable, you can adjust the backlight brightness. Press the "LIGHT" button (or similar, usually on top/front) to cycle through High, Low, and Off brightness levels.
- Backlight (Battery Power): When running on batteries, the backlight will automatically turn off after approximately 5 seconds to conserve power.

Image: A close-up view of the clock's digital display, showing time, date, day of the week, and temperature.
Time Projection
The clock features a 180-degree rotatable projector to display the time on your wall or ceiling.
- Activate Projection: Press the "PROJECTOR" button (or similar, usually on the projection arm or top). The time will be projected in a soft blue light.
- Adjust Projection Angle: Manually pivot the projection arm up to 180 degrees to direct the time display to your desired location.
- Adjust Projection Orientation: Some models allow for rotating the projected image itself. Look for a small wheel or button near the projector lens to adjust the orientation if needed.
- Projection (Battery Power): When running on batteries, the projection will automatically turn off after approximately 10 seconds to conserve power. When powered by USB, the projection can be continuous.

Image: The clock positioned on a surface, projecting the time clearly onto a dark wall.

Image: The clock on a nightstand next to a bed, projecting the time onto the ceiling, demonstrating its use in a bedroom setting.
Alarm Function
The clock features an alarm with two volume levels and a weekend mode.
- Set Alarm: Remove the battery cover to access the setting buttons. Press the "ALARM SET" button (or similar). Use the "UP" and "DOWN" buttons to set the desired alarm time. Press "ALARM SET" again to confirm.
- Activate/Deactivate Alarm: Use the "ALARM ON/OFF" switch or button (usually on the side or back) to turn the alarm on or off. An alarm icon will appear on the display when activated.
- Alarm Volume: The clock offers two volume levels. Refer to the buttons under the battery cover or on the side for a "VOLUME" switch or button to select your preferred level.
- Weekend Mode: To prevent the alarm from sounding on Saturdays and Sundays, activate the "WEEKEND" mode. This is typically a switch or button located near the alarm settings.
- Snooze Function: When the alarm sounds, press the large "SNOOZE" button (usually on top) to temporarily stop the alarm. It will sound again after approximately 9 minutes.
- Stop Alarm: To turn off the alarm completely until the next set time, press any other button (except Snooze) or the "ALARM ON/OFF" switch.
Maintenance and Care
- Cleaning: Wipe the clock with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries when the display dims or functions become erratic. Always replace all 3 AAA batteries at the same time.
- Storage: If storing the clock for an extended period, remove the batteries to prevent leakage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Clock display is blank or dim. | No power, low batteries, or backlight off. | Check USB power connection. Replace AAA batteries. Adjust backlight brightness. |
| Projection is not visible or dim. | Projection off, low batteries, or incorrect angle. | Activate projection. Ensure continuous USB power for constant projection. Adjust projection arm angle. |
| Alarm does not sound. | Alarm not set, alarm off, or Weekend mode active. | Ensure alarm time is set and activated. Check Weekend mode setting. |
| Cannot change settings. | Buttons not accessible or unit frozen. | Ensure battery cover is removed to access setting buttons. Try removing and reinserting batteries to reset the unit. |
| Incorrect temperature reading. | Unit placed near heat/cold source. | Relocate the clock to an area with stable ambient temperature. |
Specifications
| Model Number | CL030086BK |
| Brand | Marathon |
| Color | Midnight Black, Snow White |
| Dimensions (L x W x H) | 12 x 3.81 x 19 cm (approx. 4.72 x 1.5 x 7.48 inches) |
| Weight | 370 grams (approx. 0.82 lbs) |
| Material | Plastic |
| Power Source | 100V-240V AC Adapter (via USB cable), 3 x AAA Batteries |
| Display Type | Digital LCD |
| Projection | 180-degree pivot, Blue LED |
| Special Features | Temperature Display, Alarm, Snooze, Weekend Mode |
Warranty and Support
Warranty Information
All Marathon clocks are covered by a 2-year limited warranty. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Marathon customer support. Visit the official Marathon website for the most up-to-date contact information.
You can typically find support contact details on the manufacturer's website: www.marathonwatch.com





