In reality, you can cite a lot of moments when there is a need to check what time it is, and the presence of a ~smart phone~ (smartphone) does not help out here every time. By the way, it is easy to find out the exact time in diverse conditions on the  melbourne time web resource and it is possible to explain this even right now. In principle, there is no need to say anything separately about the extent to which the correct time should be found out, in view of the fact that absolutely all civilized people are well aware of this. In addition, quite a few modern people at this moment, sometimes again being late somewhere, make sure by their own example. Of course, in a simple life situation, a mobile phone, which is now available to the majority of people of any generation, may well become a source of correct time. However, this is not an impeccable way, for example, in municipal transport or at a bus stop, because in these circumstances it is clearly not always convenient to pull a smartphone out of your clothes, and if it is very expensive, then it can simply turn out to be