For example, let’s check when is day Xth from marriage.
Touch [From When?] input field, then date picker appears.
Select the date, for example March 7 2010 in this case, and push [Done] button.
Then, the date, March 7 2010, appears in [From What?] input field.
Next, touch [How many days?] input field, then numeric keyboard appears.
Then, for example, input 1,500 to the field from the numeric keyboard.
Next, push [Execute] button in the middle.
Then, the answer, “Tuesday, April 15, 2014 is day 1,500th”, appears.
If you want to share the result, push button in the bottom right corner (there is an arrow inside).
Then, you can shore the result with mail, Facebook and Twitter or you can store the result on your calender.
If you select “Facebook”, you can share the result in your timeline of your Facebook page.
If you want to calendarize the result to the date on your calendar, select “calendar” and specify the date.