UTC-3:   03   06   09   12   15   18   21   24
mdts    120  120  120  121  121  120  120  120
mdww    137  138  139  141  145  144  135  135
shts    1.3  1.3  1.4  1.4  1.4  1.4  1.3  1.3
shww    0.5  0.5  0.4  0.4  0.3  0.3  0.2  0.1