It is a D-Day Calculator (Date Calculator, D-DAY Calculator) that can be used simply.
Main function:
● You can check the D-Day date and number of days.
● D-Day automatic calculation 100 days, 200 days... 1 year, 2 years... D-day automatic calculation
● You can share the result of D-Day calculation. (KakaoTalk, Telegram, Mail, SMS, etc...)
● You can recall the D-Day information stored in the record