UTC-3:   03   06   09   12   15   18   21   24
mdts    256  256  255  254  254  254  254  255
mdww    273  300  339    8    4   17   26   25
shts    0.8  0.7  0.7  0.7  0.7  0.6  0.6  0.6
shww    0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0