The nature of this topic is that: - Those who don't work long hours will want to understate how many hours hard workers work (to avoid being labelled a slacker

The nature of this topic is that: - Those who don't work long hours will want to understate how many hours hard workers work (to avoid being labelled a slacker) - Those who do work long hours will want to overstate how many hours they work (to accrue more perceived clout) The reality is almost certainly in between. There are certainly people who both claim and do work 75+ hour weeks on a persistent basis. I've done this for 4.5 years straight as a founder.