How to Extract Year from Date in R Last Updated : 22 Feb, 2022 Comments Improve Suggest changes Like Article Like Report In this article, we are going to see how to extract the year from the date in R Programming Language. Method 1: Extract Year from a Vector In this method, the as.POSIXct is a Date-time Conversion Functions that is used to manipulate objects of classes. To extract the year from vector we need to create a vector with some dates and then arrange the date with as.POSIXct() and get year with format() methods. R Date <- c("01/12/2011 12:40:00", "11/12/2015 11:40:00", "01/02/2012 05:40:00", "01/04/2021 09:44:00" , "01/02/2020 01:43:00", "01/12/2014 04:41:00") print("Vector Date:") print(Date) # formatted date print("Extract Year:") Date <- as.POSIXct(Date, format = "%m/%d/%Y %H:%M:%S") format(Date, format="%Y") Output: [1] "Vector Date:" [1] "01/12/2011 12:40:00" "11/12/2015 11:40:00" "01/02/2012 05:40:00" [4] "01/04/2021 09:44:00" "01/02/2020 01:43:00" "01/12/2014 04:41:00" [1] "Extract Year:" '2011' '2015' '2012' '2021' '2020' '2014'Method 2: Extract Year from a Column in a Dataframe To extract the year from the column, we will create a dataframe with date columns and then separate the year from DateTime using format() methods and extract the year and convert to a numeric format. R # declaring a data frame data_frame = data.frame(Rank = c(5:8) , Time = c("2021-05-05 01:04:34", "2021-03-06 03:14:44", "2021-03-11 07:22:48", "2021-02-02 11:54:56")) print ("Original dataframe") data_frame # data_frame$year <- as.Date(data_frame$Time, "%Y") # data_frame data_frame$Time <- as.Date(data_frame$Time) print("Extract year") # extract the year and convert to numeric format data_frame$year <- as.numeric(format(data_frame$Time, "%Y")) data_frame Output: [1] "Original dataframe" Rank Time 5 2021-05-05 01:04:34 6 2021-03-06 03:14:44 7 2021-03-11 07:22:48 8 2021-02-02 11:54:56 Extract year Rank Time year 5 2021-05-05 2021 6 2021-03-06 2021 7 2021-03-11 2021 8 2021-02-02 2021 Comment More infoAdvertise with us Next Article How to Extract Year from Date in R skrg141 Follow Improve Article Tags : R Language Geeks Premier League Geeks-Premier-League-2022 R-DateTime Similar Reads How to Extract Characters from a String in R Strings are one of R's most commonly used data types, and manipulating them is essential in many data analysis and cleaning tasks. Extracting specific characters or substrings from a string is a crucial operation. In this article, weâll explore different methods to extract characters from a string i 4 min read How to Use Date Formats in R In this article, we will be looking at the approaches to using the date formats in the R programming language, R programming language provides several functions that deal with date and time. These functions are used to format and convert the date from one form to another form. R provides a format fu 2 min read How to Read a CSV from URL into R? In this article, we are going to see how to read CSV files from URL using R Programming Language. Method 1: Using Base RÂ Here we are using read.csv() methods, which is an inbuilt function in R programming. This function is similar to Python because it read the CSV file and returns the data into dat 1 min read How to calculate Years between Dates in R ? To calculate the number of years between two dates we have several methods. In this article, we will discuss all the methods and their examples of how to calculate the number of years or the difference of years between two dates in the R Programming Language. Table of ContentMethod 1: Using the seq( 3 min read How to Address format Error in R The format() function is an important tool for data transformation and presentation in the world of R Programming Language. Nevertheless, mistakes might happen to users during formatting. in this article, we will handle those errors. Cause of the ErrorThis article aims to explain common causes of er 2 min read Like