r - Setting limits with scale_x_datetime and time data -

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i want set bounds x-axis plot of time-series data features time (no dates). limits are:

lims <- strptime(c("03:00","16:00"), format = "%h:%m")

and ggplot prints fine, when add scale_x_datetime

scale_x_datetime(limits = lims)

i error: invalid input: time_trans works objects of class posixct only

fully reproducible example courtesy of how create time scatterplot r?

dates <- as.posixct(as.date("2011/01/01") + sample(0:365, 100, replace=true)) times <- as.posixct(runif(100, 0, 24*60*60), origin="2011/01/01") df <- data.frame(   dates = dates,   times = times )  lims <- strptime(c("04:00","16:00"), format = "%h:%m")  library(scales) library(ggplot2)  ggplot(df, aes(x=dates, y=times)) +    geom_point() +    scale_y_datetime(limits = lims, breaks=date_breaks("4 hour"), labels=date_format("%h:%m")) +    theme(axis.text.x=element_text(angle=90))

the error message says should use as.posixct on lims. need add date (year, month , day) in lims, because default `2015, off limits.

lims <- as.posixct(strptime(c("2011-01-01 03:00","2011-01-01 16:00"), format = "%y-%m-%d %h:%m"))     ggplot(df, aes(x=dates, y=times)) +      geom_point() +      scale_y_datetime(limits =lims, breaks=date_breaks("4 hour"), labels=date_format("%h:%m"))+      theme(axis.text.x=element_text(angle=90))

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