UTC-3:   03   06   09   12   15   18   21   24
mdts    245  250  238  251  269  265  263  254
mdww    239  235  244  236  235  231  228  229
shts    1.5  1.2  1.6  1.0  0.9  1.2  1.3  1.5
shww    0.9  1.5  0.9  1.6  2.1  2.0  1.9  1.8