We know that Apple has their reasons for every conceivable choice they make. No detail or decision is arbitrary.

When a clock or watch is displayed in advertising or some other prominent setting, it is always set to 10:10 and either :00 or :30 seconds. I know I've seen exceptions to this, but I think those have either been similarly symmetrical or else attributable to carelessness (1:50 is probably the second-most common time).

Why did Apple set the clock face for their iOS Clock icon to 10:15:00? Has it always been that way? I don't recall noticing before now.