Backlit 1,999 Day Countdown Time Clock Days Calendar for Wedding Retirement Vacation New Baby Christmas New Year

Product Features: 1. Long Period of time setup: up to 1,999 days. 2. Back light function. Press any button to start the back light.(The back light will be extinguished automatically if no operation is done for 5 seconds.) 3. Display Ending Time & Date, Starting Time & Date and Time Interval (between starting time and engind time) simultaneously. 4. Programmable Alarm Clock: ON/OFF. 5. Factory settings will be restored once the batteries are removed. 6. Display will show error when countdown time exceeds 20000 days. 7. Timer will count up automotically when starting time & date is after ending time & date. 8. Switchable 12/24 Hours. 9. Automatically calculated countdown time. Product Specifications: Screen size: 67 * 35mm / 2.6 * 1.4 in. Product size: 129(L) * 64(H)mm / 5(L) * 2.5(H) in. Net Weight: 144g / 5.08 oz. Battery Required?2 * AAA batteries (NOT Included). Operation Instructions 1. Set Your Ending Time and Date. Press and Hold "Target" button until the last 2 digits of YEAR start flashing, Press "UP/DOWN" button to adjust your "YEAR". Press "Target" button, the digits of "MONTH" "DAY" "HOUR" "MINUTE" and "SECOND" will flashing separately, Press "UP/DOWN" button to adjust your "MONTH" "DAY" "HOUR" "MINUTE" and "SECOND". Once your get your desired ending Time & Date, release the button, you are done. 2. Set Your Starting Time and Date. Press and Hold "Current" button.. then the same operation as set Ending time and date. 4. 12/24 Hours. Press "12/24H" button to switch between 12H format and 24H format. 5. S/S (Start/Stop) button. Press "S/S" button Countdown/countup will start/pause, but it will not affect the actual countdown/countup time.