​Psychology suggests people who arrive ten minutes early to everything aren't overprepared - they're using a small buffer to keep stress from deciding the mood of the day, because time pressure narrows how calmly people can think

Arriving early offers significant psychological benefits. Psychologists reveal that even a few extra minutes before an event can reduce stress. This buffer time helps maintain focus and improves decision-making. Rushing negatively impacts cognitive processes, narrowing attention to threats. Early arrivals seem calmer throughout the day, preserving their mental state before demands arise. This ability to stay composed is key.

Raccontata daeconomictimes.indiatimes.com