It is rather humorous to see that in these interviews the Mexicans joke about "Mexican time" and the Peruvians joke about "Peruvian time", but they are all talking about the same thing. It is also interesting to see that many of the respondents come from large cities where traffic and travel from place to place is extremely difficult. Mexico City, Caracas, and Lima are all difficult to get around in and this is frequently becomes an excuse (and a very valid excuse) for arriving late. Their advice is to call and let others know when you will be arriving late. Mario Espinosa states that he thinks that time is money applies more in production and he laments that many days he doesn't know when his workday will end because he works to get certain jobs done, not by the clock. Sociologists talk about monochronic and polychronic time and how cultures tend to divide time between these two patterns. Monochronic time is that where time is divided into singular sequential units. North Americans are thought of as leaning more towards monochronic time. They do one thing at a time and then move on to the next. Polychronic time is where "multi-tasking" is common. Those that adhere to polychronic time don't divide activities into singular temporal units. Latin American cultures are traditionally identified as polychronic. Time is money, although applicable everywhere, falls within a monochronic mindset.