UTC-3:   03   06   09   12   15   18   21   24
mdts    251  252  255  257  260  262  263  264
mdww    267  273  280  279  293  304  316  324
shts    1.7  1.6  1.5  1.4  1.3  1.2  1.2  1.1
shww    0.3  0.3  0.1  0.2  0.1  0.1  0.0  0.0