4 Hour Timer ⏱️ | 240 Minute Digital Clock

Designed specifically for late-night work, quiet libraries, and OLED screens. Features pure black background pixels to conserve battery and reduce eye strain in low-light environments. Completely silent with no loud surprise alarms. 🔇 Audio: Completely Silent 🌙 Display: True Black OLED Friendly #darkmodetimer #oledtimer #silenttimer #nightstudy #latenightwork