UTC-3:   03   06   09   12   15   18   21   24
mdts    257  257  256  255  255  254  255  255
mdww    335  335  329  343  351   16   24   16
shts    0.8  0.7  0.7  0.7  0.6  0.6  0.6  0.6
shww    0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.1