How to extract number of days from seconds_to_period function in R

Question

I put number of second into seconds_to_period() function and here is my code:

my_time_sum <- seconds_to_period(my_time_seconds_sum)  # Convert seconds to Period
my_time_sum

Output:

[1] "144d 12H 53M 19S"

I was just curious how can I extract '144' out of this string? Also, are there any ways to convert this duration to number of years?

Answer 1

The day() function (and related lubridate unit functions year() etc.) have methods for Period class so you can use:

library(lubridate)

day(my_time_sum)
[1] 144
 

Answer 2

Just carry out an integer division. ie:

my_time_sum <- seconds_to_period(10000000)
my_time_sum %/% days(1)
[1] 115

If you want to convert to number of years, divide by years: ie

my_time_sum /years(1)
[1] 0.3168809

Answer 3

You can extract individual components using $ like this:

my_time_sum$day

You can extract $year, $month, $day, $hour, $minute, and the confusingly-named $.Data for seconds.