UTC-3:   03   06   09   12   15   18   21   24
mdts    255  251  249  246  246  248  249  249
mdww    231  231  231  235  243  297   17   71
shts    1.5  1.7  1.7  1.9  2.0  2.0  1.8  1.7
shww    1.7  1.6  1.5  1.2  0.6  0.1  0.0  0.0