how to convert mjd to date?
This is because, for some three centuries following November 17, 1858, the Julian day lies between 2400000 and 2500000. The MJD drops those first "24" digits. Thus, we have as a formula for converting from JD to MJD, MJD = JD - 2400000.5. Truncated Julian Date, TJD, is a truncated form of MJD.