Tidy Date/Times: Exercises

Manipulating dates and times is usually quite hard and confusing. When time zones come in, it gets even harder; but still, sometime one needs to process date-time objects in their code. Lubridate is one of a few great packages which makes things a bit easier.

Answers to the exercises are available here.

Please, do all exercises using the tidiverse packages. If you obtained a different (correct) answer than those listed on the solutions page, please feel free to post your answer as a comment on that page.

Exercise 1
Parse ’01-31-2018′ as date.

Exercise 2
Check if the year of the date is a leap year.

Exercise 3
Check what day of the week (a full name) the date is.

Exercise 4
Set the day of the week to Friday. What date is it now?

Exercise 5
Parse ‘2018-01-01 1:0:0’ as a date-time with Chicago time.

Learn more about dates and times in the online course R Data Pre-Processing & Data Management – Shape your Data!. In this course you will learn how to:

• Work with different packages that help shape dates and times,
• learn about the lubridate package for quick and easy dates and times,
• and much more

Exercise 6
Print the time with London time.

Exercise 7
Create an interval starting at the date from exercise 1 and ending at the date from exercise 5.

Exercise 8
Check the duration of the interval.

Exercise 9
Check if the date ‘20180104’ is within the interval.

Exercise 10
Why is the result of exercise 9 FALSE? How can you fix it?

Related exercise sets:

Parsing Dates and Time – Part 2: Exercises Dates and Times – Simple and Easy with lubridate exercises (part 2) Dates and Times – Simple and Easy with lubridate Exercises (part 3) Spatial Data Analysis: Introduction to Raster Processing: Part 4 Dates and Times – Simple and Easy with lubridate exercises (part 1)