UTC-3:   03   06   09   12   15   18   21   24
mdts    258  258  257  256  256  256  256  256
mdww    278  272  280  299  328   11  342  277
shts    1.6  1.5  1.5  1.6  1.6  1.5  1.4  1.3
shww    0.4  0.5  0.3  0.1  0.0  0.0  0.1  0.5