UTC-3:   03   06   09   12   15   18   21   24
mdts    255  256  256  253  251  249  247  245
mdww    161  150  210  204  234  256  260  293
shts    0.9  0.9  1.0  1.1  1.2  1.4  1.5  1.5
shww    0.0  0.0  0.2  0.3  0.0  0.2  0.2  0.0