UTC-3:   03   06   09   12   15   18   21   24
mdts    264  264  264  266  266  265  265  264
mdww    304  325  323  341  319  284  283  286
shts    1.8  1.7  1.7  1.7  1.7  1.6  1.8  1.9
shww    0.3  0.4  0.5  0.4  0.6  1.2  1.0  0.8