VB.netで日付をシリアル値に変換

Dim today As Date = DateTime.Today

Console.WriteLine(today.ToOADate)

整数部が年月日、小数部が時間になる

ネタ元

• https://www.atmarkit.co.jp/ait/articles/1709/06/news020.htmlhttps://tmg0525.hatenadiary.jp/entry/2017/09/14/143939