UTC-3:   03   06   09   12   15   18   21   24
mdts    256  257  258  258  257  257  256  255
mdww    224  226  308  297  298   10   11   20
shts    1.0  1.0  1.0  1.1  1.1  1.1  1.0  0.9
shww    0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0