I sense some confusion in your ideas, let's try to set things straight.Ī planet 100 times the size of earth, assuming everything is similar to earth, 1 day (1 rotation) is 24 hours (therefore the planet will be spinning faster than earth?) Obviously time zones can become confusing and inconvenient when they are too small, but in such situations (remember, the zones are an entirely artificial human invention) it's common to designate the whole area as a single time zone (typically UTC) even though it spans many, or even all, actual time zones.īut in the OP situation, everything is larger, not smaller, so, except near the poles, time zones would be even less of a problem than they are on Earth. You'll have to change your watch by an hour after each step.

Stand near the North Pole (or South Pole), and walk around it. Iceland's time zone is only 440 miles across.Įven farther north, at Alert, Nunavut, Canada, the timezone is only 135 miles across. We can already see that situation here on Earth.Īt the equator, 1-hour time zones are about 1000 miles across, but farther north, the lengths of the latitudes get smaller. The official clock time doesn't match the sun's clock, but people get used to it.Īnd as for making a planet larger, it makes no difference. For some people 'noon' is at 10:00, for others it is at 14:00. But in both cases, the sun has just risen.

When some people get up and have breakfast their clocks will say 6:00, while for other people it will say 10:00. But unlike other countries, China has only 1 official time zone, not 5. By the sun, one end of the country is 4 hours different from the other end. Most people aren't even aware of the concept. Does it bother me (and others) that our clocks are 'wrong' by an hour and twenty minutes? Not at all. And then there is daylight saving time, which adds another hour. I'm located somewhat west of the center of my timezeone, so my clock is 20 minutes faster than a sun-based clock. The real problem is in thinking of time zones as a natural phenomenon. You don't need to consider another planet, Earth is sufficient for this question.

Flat earth time zone map