You could guess that, but with no real expectation that it's right either. E.g. for a global service I'd guess it's better viewed as a sum of three offset distributions, one per continent, but even then the individual distributions are unlikely to be gaussian.

Having run global services myself I can tell you that the shape is usually no standard distribution. Peak/trough depends on the exact usage demographics, but the one I have on hand has a trough of ~1/2 peak, and an average of ~3/4.