Date objects and date formatting

as.Date(20,origin="1970-01-01")

[1] "1970-01-21"

d <- as.Date("1990-11-09")

format(d,"%e %B % Y")

[1] " 9 November % Y"

format(d,"%b %d, %y")

[1] "Nov 09, 90"

format(d,"%Y-%m-%d")

[1] "1990-11-09"

as.Date("11/09/90", format="%m/%d/%y")

[1] "1990-11-09"

• R file: date-objects-date-formatting.R
• Rmarkdown file: date-objects-date-formatting.Rmd
• Jupyter notebook file: date-objects-date-formatting.ipynb
• Interactive version of the Jupyter notebook (shuts down after 60s):
  
• Interactive version of the Jupyter notebook (sign in required):