Filter all days between a time range in R

Question

I have a data frame like below:

entry_no      id            time
_________     ___           _____
1              1        2016-09-01 09:30:09
2                      


        

Answer 1

You could achieve it with a bit of simple formatting:

dat$hms <- format(as.POSIXct(dat$time), "%H:%M:%S")
dat[dat$hms >= "09:00:00" & dat$hms <= "10:00:00",]

#  entry_no id                time      hms
#1        1  1 2016-09-01 09:30:09 09:30:09