UTC-3:   03   06   09   12   15   18   21   24
mdts    267  267  267  267  267  265  263  261
mdww    316  322  353  355  348    3   13   25
shts    1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.6
shww    0.5  0.5  0.4  0.4  0.3  0.3  0.3  0.3