UTC-3:   03   06   09   12   15   18   21   24
mdts    257  258  259  259  258  257  257  256
mdww    276  282  274  327  351   10   21   27
shts    1.0  1.1  1.1  1.1  1.1  1.0  1.0  0.9
shww    0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.1