UTC-3:   03   06   09   12   15   18   21   24
mdts    251  255  256  257  257  258  259  259
mdww    275  277  290  299  313  331  355    5
shts    1.7  2.0  2.0  1.9  1.8  1.7  1.6  1.6
shww    1.8  1.0  0.5  0.5  0.3  0.2  0.1  0.1