Poor old Tech's being worked to death by his evil employers at his proper job, but would you believe it, I can (somewhat belatedly) answer this one?
Busiest hours are between 1-2pm closely followed by 9-10pm. Quietest hour - 5-6am (call yourselves early risers? ) There is a tea/ bath lull but maybe not so much as you'd think. Oh and our busiest day seems to be Tuesday for which I can't think of a good reason...