No, I'm on a standard V10.0.0
I just executed the code again and still get the same result:
In[6]:= SunPosition[GeoPosition[{52.37`, 4.89`}],
DateObject[{2013, 3, 1, #, 0, 0}, TimeZone -> 1]] & /@ Range[0, 23]
Out[6]= {{Quantity[95.7, "AngularDegrees"],
Quantity[-5.1, "AngularDegrees"]}, {Quantity[107.6,
"AngularDegrees"],
Quantity[3.9, "AngularDegrees"]}, {Quantity[120.0,
"AngularDegrees"],
Quantity[12.3, "AngularDegrees"]}, {Quantity[133.5,
"AngularDegrees"],
Quantity[19.6, "AngularDegrees"]}, {Quantity[148.3,
"AngularDegrees"],
Quantity[25.4, "AngularDegrees"]}, {Quantity[164.5,
"AngularDegrees"],
Quantity[29.1, "AngularDegrees"]}, {Quantity[181.6,
"AngularDegrees"],
Quantity[30.2, "AngularDegrees"]}, {Quantity[198.6,
"AngularDegrees"],
Quantity[28.6, "AngularDegrees"]}, {Quantity[214.6,
"AngularDegrees"],
Quantity[24.5, "AngularDegrees"]}, {Quantity[229.2,
"AngularDegrees"],
Quantity[18.4, "AngularDegrees"]}, {Quantity[242.5,
"AngularDegrees"],
Quantity[10.9, "AngularDegrees"]}, {Quantity[254.8,
"AngularDegrees"],
Quantity[2.4, "AngularDegrees"]}, {Quantity[266.6,
"AngularDegrees"],
Quantity[-6.7, "AngularDegrees"]}, {Quantity[278.6,
"AngularDegrees"],
Quantity[-15.8, "AngularDegrees"]}, {Quantity[291.4,
"AngularDegrees"],
Quantity[-24.6, "AngularDegrees"]}, {Quantity[305.7,
"AngularDegrees"],
Quantity[-32.6, "AngularDegrees"]}, {Quantity[322.2,
"AngularDegrees"],
Quantity[-39.2, "AngularDegrees"]}, {Quantity[341.3,
"AngularDegrees"],
Quantity[-43.5, "AngularDegrees"]}, {Quantity[2.0,
"AngularDegrees"],
Quantity[-44.8, "AngularDegrees"]}, {Quantity[22.5,
"AngularDegrees"],
Quantity[-42.9, "AngularDegrees"]}, {Quantity[41.1,
"AngularDegrees"],
Quantity[-38.0, "AngularDegrees"]}, {Quantity[57.1,
"AngularDegrees"],
Quantity[-31.1, "AngularDegrees"]}, {Quantity[71.0,
"AngularDegrees"],
Quantity[-22.9, "AngularDegrees"]}, {Quantity[83.6,
"AngularDegrees"], Quantity[-13.9, "AngularDegrees"]}}
Did you see my analysis above? It showed that the actual W|A call also includes the caller's location. If that is somehow used in the calculation that would explain why we see different results. However, the results should not depend on that and it seems likely this is a bug.