UTC-3:   03   06   09   12   15   18   21   24
mdts    252  247  245  245  247  248  249  251
mdww    231  230  231  243  277  314   28   75
shts    1.6  1.8  1.9  2.0  1.9  1.8  1.7  1.6
shww    1.7  1.4  1.1  0.5  0.1  0.0  0.0  0.0