Time and date at a glance - Supports Gregorian calendar month, day, temperature, hour (24-hour system), minute and week display with a large digit display. The hour is shown in a 24-hour format, clearly indicating time with 1-12am and 13-23pm distinctions for morning and afternoon. Temperature, reminders and automatic brightness - Six groups of birthday reminder functions for important dates. - Automatic temperature test with a range of -9 to 50 C. - Automatic brightness adjustment: display brightness automatically reduces by half each day from 22:00 to 7:00. Long-lasting calendar and memory - 50-year perpetual calendar query function and date/time memory function. - Built-in battery preserves time and settings, so you do not need to reset the date and time after power loss or unplugging external power. Alarm and time telling features - Hourly on-time alarm function (not active from 22:00 to 6:00). - When enabled, voice and music time telling occurs daily from 7:00 to 21:00, with different music for each time. Eight alarms and reminders - 8 groups of alarm clock function with time reporting when ringing. - Supports setting different times; there will be ringtone and voice reminders at the set times, lasting 1 minute. Practical use scenarios - Bedroom clock for daily wake-up and night comfort: large digits, 24-hour display, night brightness reduction and temperature readout help with a smoother morning routine and safer night viewing. - Family calendar and event hub: six birthday reminders keep track of important dates alongside temperature readings for comfort planning. - Home or office scheduling: eight independent alarms for daily routines, meetings, and reminders, with audible and vocal prompts to improve punctuality. Performance and reliability - Large, clear display for easy reading from a distance. - 24-hour time display and clear day/night distinction. - Built-in battery backup preserves time, settings, and reminders through power interruptions. - Multiple alarms and birthday reminders provide flexible scheduling without the need for additional devices. Compatibility and use - Standalone clock with calendar, temperature sensing, brightness control, and multiple alarms. - No external sensors required beyond built-in components; designed for bedside, living room, kitchen, or office environments. Dimensions and material - Display-focused design with large digits for readability; built-in components ensure reliable performance. (No additional external modules required.) Note: This description preserves the original function set and does not omit any specified features, while presenting them in a clear, customer-friendly format.