UTC-3:   03   06   09   12   15   18   21   24
mdts    256  254  254  253  255  257  259  259
mdww    305  289  281  279  280  292  336   21
shts    1.3  1.2  1.2  1.2  1.2  1.2  1.2  1.2
shww    0.2  0.4  0.6  0.6  0.5  0.3  0.0  0.0