up next, we speak with author howard mansfield about his book that explains how the concept of time zonese about. >> time first meant where the sun was in the sky. noon is where the sun is exactly overhead at that time. in your field, in your town, in your place that's it. so time is very local. time is nature. time is the course of the sun across the sky, it's the course of the moon, it's the seasons. and what happens is that clocks

up next we speak with author howard mansfield about his book "turn and jump" which explains how the concept of time zones came about . >> time first meant when the

up next we speak with author howard mansfield about his book, "turn and jump," that explained how theoncept of time zones came about. >> time first meant where the sun was in the sky. noon was where the sun is

up next we speak to howard mansfield about his book "turn and jump: how time and place fell apart" that explains how the concept of time zones came about. >> time first meant where the sun was in the sky, noon was when the sun was completely overhead in your town, in your place. time is very local. time is the course of the sun across the sky, the moon, the season. what happened is clocks come along. the first

up next we speak to howard mansfield about his book "turn and jump: how time and place fell apart" that explains how the concept of time zones came about. >> time first meant where the sun was in the sky, noon was when the sun was completely overhead in your town, in your place. time is very local. time is the course of the sun across the sky, the moon, the season. what happened is clocks come along. the first clocks represent time, represent nature, the clock face mimics the passage of time and by the end of the 19th century clocks our time and nature is forgotten and this happens for a lot of people. industrialization, the railroad plays a huge role in it. you are no longer on a hillside in your village, you need more accurate time if you are taking the train because you are going from a local place to another and everybody has his own place, you might be off and there are two clocks on the train platform and that is when the railroads create time zones in 1883. the other thing is in the 19th century the railroad was everything. it is the shaping technology. people look to it to get r

up next we speak with author howard mansfield about his book "turn and jump" which explains how the concept of time zones came about . >> time first meant when the sun was in the sky and knew was when the sun is exactly overhead. in your field, your town, your place but time is very local. time is the course of the sun across the sky and it's the course of the moon, it's sees. and what happens is that clients come along. >> clocks represent time, clocks represent nature. plots minutes the passage of time. then by the end of the 19th century, clocks our time and nature is a guide and this happens for a lot of different reasons. industrialization, the railroad he plays a huge role. you're no longer just on the side in your little village. you're taking the train. because now you've gone from one local place to another local place, everybody's got their own place. you might get off and there might be two different clocks on the train and that's when the railroad essentially creates time zones in 1883. if the railroads do it, not the government. >> but the other thing to understand about the ra

up next we speak with author howard mansfield about his book, "turn and jump," that explained how the concept of time zones came about. >> time first meant where the sun was in the sky. noon was where the sun is exactly overhead. time is very local. time is nature. time is the course of the sun across the sky, it's the course of the moon, it's the seasons. and what happens is that clocks come along. first clocks represent time. clocks represent nature. the clock face mimics, you know, the passages. and by the end of the 19th century, clocks are time and nature is forgotten. and this happens for a lot of different reasons, industrialization, the railroads plays a huge role in this. you're no longer just on a little hillside in your little village. you need more accurate time if you're taking the train, because now you're going from one local place to another local place, everybody's got its own place. you might get off, and there'd be two different clocks on the platform. and that's when the railroads actually create time zones, in 1883. it's the railroads do it, not the government, no