UTC-3:   03   06   09   12   15   18   21   24
mdts    253  257  260  262  262  264  264  264
mdww    269  288  280  276  271  267  271  300
shts    1.0  1.0  1.0  1.1  1.1  1.2  1.5  1.8
shww    0.4  0.1  0.3  0.5  0.8  1.0  0.8  0.3