UTC-3:   03   06   09   12   15   18   21   24
mdts    250  253  255  255  257  257  258  260
mdww    280  297  332  339  333  302  292  292
shts    1.1  1.3  1.5  1.6  1.7  1.7  1.8  2.0
shww    0.6  0.4  0.4  0.6  0.7  1.0  1.1  1.0