Introduction
The Timex T129B RediSet Digital Alarm Clock is designed for convenience and reliability, offering dual alarms, a programmable snooze, nap timers, and integrated USB charging ports. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance of your device.
Product Features
- Dual Alarms: Set two independent alarms for different schedules (e.g., weekdays and weekends).
- RediSet Clock: Automatic time setting upon power connection and time zone selection.
- USB Charging Station: Features two USB ports (5W for phones, 10W for tablets/quick-charge phones) to charge devices simultaneously.
- Programmable Snooze: Adjustable snooze duration from 1 to 29 minutes.
- Nap Timers: Convenient feature for short naps.
- Volume Switch: Select between soft or loud alarm volume.
- Battery Backup: Maintains time and alarm settings during temporary power interruptions (requires 3 AAA batteries, not included).
- Display Dimmer: Adjustable LED display brightness.
Setup
- Power Connection: Connect the alarm clock to a 100V-240V universal AC adapter. The RediSet feature will automatically display the correct time.
- Time Zone Selection: If you are not in the Eastern Time Zone, use the "Time Zone" button (located on the back or top of the unit) to cycle through the available time zones until the correct time is displayed.
- Daylight Saving Time (DST): Locate the "DST" switch (usually on the back). Slide it to "+1" to add one hour for Daylight Saving Time, and to "-1" when DST ends.
- Battery Backup Installation: For battery backup, open the battery compartment (typically on the bottom or back) and insert 3 AAA batteries (not included). Ensure correct polarity. This will preserve time and alarm settings during power outages.

Image: Front view of the Timex T129B alarm clock, showing the digital time display and two front-facing USB charging ports.

Image: Diagram of the Timex T129B alarm clock highlighting features like dual alarm indicators, 0.9" LED display, 3-level dimmer, low battery indicator, 5W USB port for smartphones, 10W USB port for tablets/quick-charge, programmable snooze, nap timers, Daylight Saving Time switch, and loud/soft alarm selector.
Operating Instructions
Setting the Time
- Press and hold the TIME SET button (usually on the top panel) until the time display flashes.
- Use the + or - buttons to adjust the hour. Pay attention to the PM indicator.
- Press TIME SET again to move to minute adjustment. Use + or - to set minutes.
- Press TIME SET one more time to confirm and exit time setting mode.
Setting Alarms (Alarm 1 and Alarm 2)
The clock features two independent alarms. The process is identical for both.
- Press and hold the ALARM 1 or ALARM 2 button until the alarm time flashes.
- Use the + or - buttons to adjust the alarm hour. Observe the PM indicator.
- Press the respective ALARM button again to move to minute adjustment. Use + or - to set minutes.
- Press the ALARM button one more time to confirm and activate the alarm. An indicator light (ALM 1 or ALM 2) will illuminate on the display.
- To turn off an active alarm, press the corresponding ALARM button once. The alarm indicator will turn off.
Snooze Function
When an alarm sounds, press the large SNOOZE/DISPLAY DIMMER bar to temporarily silence the alarm. The alarm will sound again after the preset snooze duration.
- Programmable Snooze: To adjust the snooze duration (1-29 minutes), refer to the detailed instructions in the full owner's manual.
Nap Timer
The nap timer allows for a short, temporary alarm without affecting your main alarm settings.
- Press the NAP button. The display will show the default nap time (e.g., 5 minutes).
- Use the + or - buttons to adjust the nap duration.
- The nap timer will start automatically after a few seconds or by pressing NAP again.
- To cancel the nap timer, press ALM RESET.
Display Dimmer
Adjust the brightness of the LED display to your preference.
- Press the SNOOZE/DISPLAY DIMMER bar (when no alarm is sounding) to cycle through different brightness levels.
USB Charging
The clock provides two USB ports for charging your electronic devices.
- The port labeled PHONES (5W) is suitable for charging smartphones.
- The port labeled PHONES/TABLETS (10W) offers faster charging for tablets and quick-charge compatible smartphones.
- Simply connect your device's USB charging cable to the appropriate port on the front of the alarm clock.
Video: An official product video from SDI Technologies, Inc. demonstrating the Timex Alarm Clock with USB Charging Station, RediSet Digital features, including dual USB ports for charging devices and automatic time setting.
Maintenance
- Cleaning: Wipe the clock with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: When the "BATT LOW" indicator appears, replace the 3 AAA backup batteries. Use a paper clip to open the battery compartment, replace the batteries, and ensure the compartment is securely closed.
- Power Cord: Ensure the power cord is not pinched or damaged.
Troubleshooting
| Problem | Solution |
|---|---|
| Clock display is blank. | Ensure the AC adapter is securely plugged into a working power outlet. Check if there was a power outage. If using battery backup, ensure batteries are fresh and correctly installed. |
| Alarm does not sound. | Verify that the alarm (ALM 1 or ALM 2) is activated (indicator light on). Check the alarm volume setting (LOUD/SOFT switch). Ensure the alarm time is set correctly (AM/PM). |
| USB charging is not working. | Ensure the clock is powered on. Check the USB cable for damage and ensure it's properly connected to both the clock and your device. Try a different USB port or device to isolate the issue. |
| Time is incorrect after power connection. | Use the "Time Zone" button to select your correct time zone. Adjust the "DST" switch if Daylight Saving Time is active. |
Specifications
- Model: T129B
- Brand: Timex
- Display Type: Digital LED
- Power Source: AC Adapter (100V-240V), 3 AAA batteries for backup (not included)
- USB Ports: 1x 5W (for phones), 1x 10W (for tablets/quick-charge phones)
- Product Dimensions: 6.42"W x 3.03"H
- Item Weight: 8.8 ounces
- Material: Plastic
- Manufacturer: SDI Technologies, Inc.
Warranty and Support
For warranty information and technical support, please refer to the complete owner's manual included with your product or visit the official Timex website. Keep your purchase receipt for warranty claims.
Included Components: Owner's Manual





