Time might not totally be money, but they're definitely in a balance. I'm currently working 40 hours a week, but considering working less. That'd also lower my wage though, obviously. Beyond that I also notice that I tend to be much more likely to spend more money to safe time (i.e. paying the bicycle shop to fix my bike tire instead of fixing it myself). More and more I'm noticing that up to some limit time is money and money is time. And so I'm going to have to put a value on my (free) time.