UTC-3:   03   06   09   12   15   18   21   24
mdts    253  254  255  256  258  258  259  260
mdww    276  278  283  287  302  326  348    2
shts    1.8  1.9  2.0  1.9  1.9  1.8  1.7  1.6
shww    1.3  1.0  0.8  0.6  0.4  0.2  0.2  0.2