UTC-3:   03   06   09   12   15   18   21   24
mdts    248  247  246  246  248  252  250  238
mdww    222  229  231  236  237  234  231  237
shts    1.0  1.0  1.0  1.0  0.9  1.0  1.2  1.4
shww    0.0  0.1  0.3  0.4  0.8  1.3  1.5  1.3