UTC-3:   03   06   09   12   15   18   21   24
mdts    255  255  258  260  262  265  267  262
mdww    270  270  277  279  271  268  264  269
shts    1.0  1.0  1.0  1.1  1.1  1.3  1.7  2.0
shww    0.2  0.6  0.5  0.6  0.9  1.2  1.2  0.9