Jumbo Easy to Read Display - The digital clock has a large screen display that you can choose either a 12/24-hour time display, and it is very easy to read even from across the room and from all angles. Time is displayed with a Jumbo 2.15” Tall White LED Time Display. Indoor temperature and Calendar are both a 0.8" Tall Blue LED digit display which is easy to read. Weekday / Weekend Alarm Functionality – Your schedule is different during the week and on weekends, set your alarm with 2 different alarms with a Weekday Alarm and an alarm for the weekend. You can set two alarm modes: 5 Days a Week, Mon-Fri, and a second alarm that you can set for other days or for 7 Days a Week, Mon-Sun. Easy Adjust 5-Step Dimmer Function – Clock display has an easy to use 5-Step Display Dimmer to control the brightness of the display to perfectly match your room and needs. Press the top Snooze/Light Button to switch between brightness of 100% > 50% > 25% > 5% > OFF 12/24 Time Format Display and 5 Minute Snooze – Features a switchable 12/24-hour time format and an 5 minute snooze when you need a little more sleep. Plug-In Electric Clock with Battery Back-Up – Use a 2x AAA batteries (not included) for back up in case of a power outage. The 2xAAA battery-backup function guarantees that time and settings will be preserved in the event of a power outage. During power outage, the screen goes blank, but alarm and time settings are retained, and the alarm will still sound