As a kid Elon Musk had so much trouble being on time, his younger brother developed a trick to make sure Musk didn't miss the bus to school.

Kimbal Musk - who currently sits on Tesla's board - would lie to his older brother about the time, telling the future billionaire that the bus would be arriving, several minutes ahead of schedule. The slight manipulation ensured Musk wouldn't be left behind.

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More than three decades later, the business world is still wrangling with "Elon Time," as one shareholder has labeled it, those confident pronouncements about the timing of deliveries, rollouts and benchmarks that are often unrealistic at best, empty spin at worst (depending on your perspective).

"I think I do have, like, an issue with time," Musk said minutes after shareholders voted to maintain his status as Tesla's chairman at the company's annual shareholders meeting Tuesday. "I'm a naturally optimistic person. I wouldn't have done cars or rockets if I wasn't. I'm trying to recalibrate as much as possible."