UTC-3:   03   06   09   12   15   18   21   24
mdts    259  261  262  264  265  266  267  267
mdww    300  293  292  294  301  302  298  315
shts    1.3  1.2  1.2  1.2  1.3  1.3  1.4  1.5
shww    0.2  0.3  0.4  0.4  0.4  0.6  0.6  0.4