This project is primarily for testing and demonstrating ideas for an ultimate programming system, though it might very well become a very usable programming system in time. It is being developed with PowerBasic's PBWin7 compiler.
For each Date/Time since 1582-Oct-15 (start Gregorian Calendar): ++ add/sub days&hh:mm:ss - considered all leap years; summer time DST ++ compute start/end of DST ++ compute UTC (Greenwich) to local/DST ++ weekdays ++ Excel compatible date value