[pmwiki-users] How to: calculate how many days left

[Hans]

Wednesday, February 27, 2008, 2:07:22 AM, Randy wrote:

> Actually, the utime function does not correctly return the number of  
> seconds from the unix epoch.

It does. In fact it reports the same results as {(ftime %s DATE)},
both are equivalent.

> At 7:30 p.m. I tried this:

> {(sub (utime now) (utime {MyPage$LastModified}) )}

> It evaluated to over 20 hours, even though I had modified MyPage  
> within the previous minute or two.

> I suspect utime loses precision when it calls the date function.

The problem here is that  {MyPage$LastModified}
returns a string like
       February 27, 2008, at 09:13 AM
and utime or ftime disregard the latter part.
You need to enclose it in hyphens in order to get correct results,
so the expression can recognise it as one argument:

 {(sub (utime now) (utime '{MyPage$LastModified}' ))}



  ~Hans