Time Passage Counter Device

I need a stand-alone unit with a power source and display that shows the passage of time from three entered dates: 1 Birth Date, 2 Wedding Date, and 3 Passed Date.

Requirements:
- Enter all three dates once and view them together.
- Display elapsed time rom each date in years, months, days, hours, minutes, and seconds.

Ideal Skills and Experience:
- Experience in developing hardware with display capabilities.
- Proficiency in programming for time display and user input.
- Ability to create a user-friendly interface for easy date entry and viewing.

I was looking to commemorate time passage from selected entered date

Date Description Entered date Current Date Time Elapsed Time ( Years ,Months, Days, Hours, Minutes, Seconds)

Number of Years, number of months, number of days, hours minutes, seconds,

Her Birth Date 04-17-1953 till current date gives her age since birth select then see Number of Years, number of months, number of days, hours minutes, seconds,

Our Wedding Date 12-22-1996 till current date gives time since marriage select then see Number of Years, number of months, number of days, hours minutes, seconds,

Since (date desc) ##-##-#### till current date gives time since (date desc) select then see Number of Years, number of months, number of days, hours minutes, seconds,