I'm the CEO of Siemens. I reply to most emails with 2-letter responses and don't have recurring meetings — here's a day in my life.

Siemens This as-told-to essay is based on a conversation with Roland Busch, the 61-year-old CEO of Siemens AG, based in Munich, about his daily routine. It's been edited for length and clarity. I became the president and CEO of Siemens AG in February 2021. I've spent 32 years at the company, rising from my first role as a project head in corporate research and development to the top job. I lead a global technology company that combines the physical and digital worlds, with businesses spanning…