# 1. Convert a formatted character vector to datetime type

# 2. Create a datetime with a timezone

# 3. extract a date portion from a datetime

# 4. check for a leap_year on a date

# 5. use the datediff function on 2 dates

# 6. get the current date or time

# 7. extract day, month, year from a date object

# 8. create multiple date objects using the 
#   different format date functions ymd, mdy etc.

# 9. determine the time for a date using am() pm()

# 10. create  time interval object

# 11. create a duration object