Find out how many days are there since you were born:

library(tidyverse)
## Warning: package 'ggplot2' was built under R version 4.4.3
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## Warning: package 'purrr' was built under R version 4.4.3
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## ℹ Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors
library(nycflights13)
library(lubridate)
library(lubridate)
my_birthday <- ymd("2006-04-16") 
days_since_birth <- today() - my_birthday

print(days_since_birth)
## Time difference of 7331 days


Find out how many seconds (approximately) are there since you were born:

time_interval <- my_birthday %--% now()
seconds_since_birth <- as.duration(time_interval)

print(seconds_since_birth)
## [1] "633478808.213267s (~20.07 years)"