os.date seconds range

In the documentation the range of os.date("*t").sec is said to be 0-61 but when testing it the seconds go
58,59,0,1.... Is there a reason for this or is it just a typo?

@Coder The 0-61 is probably a mistake. I found that entry, but I also found 5 other ones that showed 0-59 as the range.

@Coder it may be a because of floating point and whoever wrote it kept that in mind. http://youtu.be/PZRI1IfStY0

Yeah thanks