UTC-3:   03   06   09   12   15   18   21   24
mdts    252  255  256  256  257  258  259  259
mdww    276  277  286  298  313  332    3    9
shts    1.8  2.0  2.0  1.9  1.8  1.7  1.6  1.6
shww    1.7  1.1  0.6  0.5  0.3  0.2  0.1  0.1