I always like the visual look of D-M-Y in writing; a word bounded by two numbers (1 January 1970). If it's going to be all numbers, 1970-01-01 seems like the r

I always like the visual look of D-M-Y in writing; a word bounded by two numbers (1 January 1970). If it's going to be all numbers, 1970-01-01 seems like the right way to do it. (RFC3339 is the best time format.)