UTC-3:   03   06   09   12   15   18   21   24
mdts    255  255  255  256  256  257  257  257
mdww    336    7   16   14  353  346  292  267
shts    2.4  2.3  2.1  2.0  1.8  1.8  1.7  1.7
shww    0.0  0.0  0.1  0.4  0.3  0.3  0.6  0.9