UTC-3:   03   06   09   12   15   18   21   24
mdts    120  120  120  119  119  119  119  119
mdww    157  156  162  166  165    3   12   18
shts    0.7  0.8  0.8  0.9  0.9  1.0  1.0  1.0
shww    0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0