UTC-3:   03   06   09   12   15   18   21   24
mdts    238  238  237  237  236  238  240  240
mdww    238  237  237  238  243  258  266  268
shts    1.4  1.4  1.4  1.3  1.2  1.3  1.3  1.2
shww    1.2  1.1  0.9  0.9  0.9  0.5  0.5  0.7