"It is noon."
That would mean "there is noon". Imagine an arctic night about December. Your kid asks "if there is darkness all day, there is no noon?" (Ha egész nap sötét van, nincs dél?) In this case you can use this form "Van dél!" (There is noon!)
Our word order gives emphasis to the part of the sentence that is in front. Your version is about the existence of noon, while the example is about the time of the day we have now.
In hungarian, the subject comes before the verb. The verb is placed at the end usually