在中國傳統治喪習俗中，人往生後在每一個七天都要為亡者做功德，冀望以此功德能令亡者往生善道，除此之外亦有百日、對年與三年這些祭拜日，這些日期是以中國傳統農曆來計算日期，現代人沒有農曆的概念，難以計算這些日期，作七百日對年日期計算機便是針對這些日期所生的計算機，只要輸入亡者的往生日期，就可以推算出所有的忌念日。

請注意：
殯葬業計算模式已移除，改以「自訂計算式」功能取代，提供更自由更完整的自訂功能。

功能：
．計算作七日、百日、對年與三年。
．將日期標記到行事曆功能。
．以圖形或文字分享計算結果(以Line、微信或電子郵件)。
．支援西曆(20xx年)與國曆(1xx年)，直接於年份輸入框輸入即可。
In the traditional Chinese funeral customs every seven days after the death of a person they should make merits for the deceased hoping that this merit will enable the deceased to live a good life. In addition there are also hundred days years and three years of worship. These dates are calculated using the traditional Chinese lunar calendar. Modern people do not have the concept of a lunar calendar. It is difficult to calculate these dates. Making a seven hundred-day counter-year date computer is a computer that is based on these dates as long as you enter the deceased's death date you can Calculate all the miss days.

Please note:
The funeral industry calculation model has been removed and replaced with the "custom calculation formula" function to provide more free and complete custom functions.

Features:
. It is calculated as seven days one hundred days counter year and three years.
. Mark date to calendar function.
. Share calculation results with graphics or text (in Line WeChat or email).
. Support Western calendar (20xx year) and national calendar (1xx year) just enter in the year input box.