Converting a date formated as DD/MM/YYYY to seconds spent from 01/01/1970?

Question

Following command converts date formated as MM/DD/YYYY to seconds.

date -d "01/21/2014" +%s

How can I convert DD/MM/YYYY formated date to seconds?

Thanks

Answer 1

date -j -f "%d/%m/%Y" "DD/MM/YYYY" "+%s"