is represented in the form "higher column to the left". In the case of date, a number [ny:ly:dy] means [365*nyxipy+366*nyxiky]+[29*lyxity+30*lyxixy+31*lyxizy]+ dy, where the bases [365/366] [29/30/31] should vary according to a complicated but unique rule. You may change the order of columns "{vede'i lo drata be I'ySyO'y xi 8601}" if you