Function toOADate

toOADate(date, date1904?): number
Encode date to oa date (ole automation, used by Excel)
Parameters
- date: Date
- Optional date1904: boolean = false
  Whether to use the 1904 Date System. See https://bettersolutions.com/excel/dates-times/1904-date-system.htm
  
  http://markitondemand.github.io/moment-msdate/
  
  https://docs.microsoft.com/en-US/office/troubleshoot/excel/wrongly-assumes-1900-is-leap-year https://docs.microsoft.com/en-us/dotnet/api/system.datetime.tooadate?redirectedfrom=MSDN&view=net-5.0#System_DateTime_ToOADate https://bettersolutions.com/excel/dates-times/1904-date-system.htm
Returns number