When people did not invented watch, how did they find out the time? This is a very common question that comes in the mind. The answer to this question is that they used to depend on the sun and the moon to find out the time. They used to depend on the sun to find out whether it is morning or noon. They used to depend on the moon to find out whether it is evening or night. In those previous societies, there were experts in these and all the other people used to listen to them what time they are stating. There was another type of clock at that time. It was called sand clock. However this type of clock does not exists in this modern world. This modern era is the time of digital clocks.

It was not long ago when people discovered that the time of different countries are different. So the people realized the necessity of fixing a time and then decide their standard time of their respective country. The standard time that is accepted all around the world is the Greenwich Mean Time. The countries decide their standard time depending on the Greenwich Mean Time. Let us take one example. In India, the Indian Standard time is five and a half hour more than the Greenwich Mean Time. In Pakistan, the standard time is five hours more than the Greenwich Mean Time. There are a number of examples that can be cited in this context. There are some countries like Greenland whose standard time is equal to the Greenwich Mean Time.

Illinois is a state in the United States of America. It has got a standard time of its own. But still a question comes in the mind that what time is it in Illinois right now. The answer to this question can be given directly by adding five hours to the Greenwich Mean Time. But are there any other way to find out what time is it in Illinois right now? The answer to this question is yes. There are other ways to find out what time is it in Illinois right now. If you know the time of the standard time of the United States of America, then just add thirty five minutes more to it. You will get the standard time of the state of Illinois. However there are certain other complexities regarding this method as the days are shorter in the months of the winter season.