UTC-3:   03   06   09   12   15   18   21   24
mdts    256  256  261  260  259  258  258  257
mdww    274  273  280  312  316  328  253   10
shts    0.9  0.9  1.1  1.0  0.9  0.9  0.8  0.8
shww    0.7  0.9  0.2  0.0  0.0  0.0  0.0  0.0