Large Screen and Multifunctionality: This digital alarm clock features a large LED display (6.3 inches x 0.7 inches ~ 1 inch x 2.36 inches), ensuring clear time reading even from a distance. Adjustable Brightness: Simply press the up/down buttons to adjust the brightness to three levels (bright/medium/low/ultra-low/off). Additionally, in night mode, the digital alarm clock automatically dims between 7:00 PM and 7:00 AM (night mode time is fixed and cannot be adjusted). Weekday Mode & Snooze Function: Our digital desktop alarm clock offers four alarm modes, allowing you to choose a fixed time to wake yourself: Monday to Friday/Monday to Saturday/Monday to Sunday/Saturday to Sunday. Simply press and hold the "Alarm" button, then use the "Up" and "Down" buttons to adjust the hour/minute/snail time/weekday mode. Daylight Saving Time and Power Saving Mode: When powered by batteries, the LED alarm clock automatically turns off and enters power saving mode after 10 seconds of inactivity, conserving battery power and ensuring uninterrupted use, while the system continues to keep time normally and retains previous settings. Simultaneously, the built-in Daylight Saving Time function automatically adjusts the time without manual operation.