UTC-3:   03   06   09   12   15   18   21   24
mdts    255  255  254  254  255  255  256  257
mdww    272  309  314  323  341  274    5  269
shts    1.6  1.5  1.3  1.2  1.1  1.0  0.9  0.8
shww    0.7  0.1  0.0  0.0  0.0  0.0  0.0  0.0