In this article, we are going to separate date and time in R Programming Language. Date-time is in the format of date and time (YYYY/MM/DD HH:MM:SS- year/month/day Hours:Minute:Seconds).
Extracting date from timestamp: We are going to extract date by using as.Date() function.
Syntax:
as.Date(data)
where data is the time stamp.
Extracting time from the time stamp: We can do this by using as.POSIXct() function. To get a particular time hour format we can use the format() function
Syntax:
format(as.POSIXct(data), format = "%H:%M")
Where,
- as.POSIXct() is used to extract time from the time stamp
- format is used to get the time format. Ex : hours:Minutes and seconds
- data is the time stamp
Example 1:
# create variable with one time stamp
data ="2021/05/25 12:34:25"
# extract date from the time stamp
print( as.Date(data))
# get time from date using format in
# the form of hours and minutes
print( format(as.POSIXct(data), format = "%H:%M"))
Output:
Example 2:
# create variable with one time stamp
data ="2021/05/25 12:34:25"
# extract date from the time stamp
print( as.Date(data))
# get time from date using format in the
# form of hours ,minutes and seconds
print( format(as.POSIXct(data), format = "%H:%M:%S"))
Output:
Example 3:
# create data with five time stamps
data = c("2021/05/25 12:34:25",
"2019/1/14 04:10:30",
"2020/7/11 09:05:05",
"2018/1/14 04:10:30",
"2017/7/11 09:05:05")
# extract date from the time stamp
print( as.Date(data))
# get time from date using format in the
# form of hours ,minutes and seconds
print( format(as.POSIXct(data), format = "%H:%M:%S"))
Output:
