UTC-3:   03   06   09   12   15   18   21   24
mdts    260  259  258  258  257  257  257  258
mdww     26  284  287  295  334    3   16    8
shts    1.6  1.8  1.8  1.7  1.7  1.5  1.4  1.3
shww    0.3  0.1  0.2  0.1  0.0  0.0  0.0  0.0