Ref: https://unix.stackexchange.com/questions/79371/removing-leading-zeros-from-date-output
Use case: In https://github.com/KamarajuKusumanchi/.mycd/blob/master/mycd.sh, I needed a way to check if the current minute is in a given range. If the current minute is padded with zero then bash is interpreting it as an octal number which leads to problems if the current minute happens to be 08 which is not a valid octal number.