At least in the Valley, hours tend to be flexible, at my current position, people walk in between 8 and 11. My team's stand up is at 11 so the rule is be in the

At least in the Valley, hours tend to be flexible, at my current position, people walk in between 8 and 11. My team's stand up is at 11 so the rule is be in the office before them, but even then sending an email saying that traffic was bad, or Bart is dumb, or you're waiting for Fedex is okay (the assumption being you'll join the standup remotely and get some work from from home). With the large companies that have shuttle's the flexibility is because they need to stagger all their busses. It really depends on the culture and the type of environment though, much more "corporate" positions and cultures would require better on-timeliness, but being told to take the day off for being 6 minutes late seems odd for a developer position.