Conversions between POSIXct to HTTP Date objects.
class
Arguments
from: numeric, POSIXct or HTTPDate object.
Examples
# convert POSIXct to HTTP date stringas(0,"HTTPDate")# Thu, 01 Jan 1970 00:00:00 GMTas(Sys.time(),"HTTPDate")# parse HTTP date string to POSIXctdt ="Thu, 01 Jan 1970 00:00:00 GMT"class(dt)="HTTPDate"as(dt,"POSIXct")