Thomas, Wow! That URL references the database from the original UDUNITS package, which is old. Try <http://www.unidata.ucar.edu/software/udunits/udunits-1.12.10/udunits.txt>. > http://cfconventions.org/Data/cf-conventions/cf-conventions-1.7/build/ch04s04.html > > The above page says that "The acceptable units for time are listed in > the udunits.dat file" which is linked to the following page: > > http://www.unidata.ucar.edu/software/udunits/ > > But I don't see a udunits.dat file there. Nor do I see it in the > ununits source code. Regards, Steve Emmerson Ticket Details =================== Ticket ID: ZNL-906678 Department: Support UDUNITS Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.