UTC-3:   03   06   09   12   15   18   21   24
mdts    253  255  263  257  245  241  242  242
mdww    230  229  233  232  234  244  246  247
shts    1.4  1.5  1.3  1.5  1.7  1.8  1.8  1.8
shww    1.0  1.1  1.9  2.0  1.5  1.1  0.9  0.7