R help - Aug 2010 - how to convert timeSeries to class "POSIXct"

Hello.

I´m studing extreme values and i´m using the packages: evd, fExtremes and
evir.

I need to convet timeSeries (or data.frame) to class "POSIXct". Like
"bmw"
data:
> is(bmw)
[1] "numeric" "vector" "index_timeSeries"

Please help!!

Thank you

	[[alternative HTML version deleted]]