resp<-response(headers ="Date: Wed, 01 Jan 2020 09:23:15 UTC")resp|>resp_date()#> [1] "2020-01-01 09:23:15 UTC"# If server doesn't add header (unusual), you get the time the request# was created:resp<-response()resp|>resp_date()#> [1] "2020-01-01 UTC"