What we say and what we write are different.
- 16th April 2006.
- 16th of April 2000 and 6.
- The attack took place on 10th January 2013.
- The attack took place on the 10th of January 2000 and 13.
Also, date first, then month, then year. It is logical and clear.
- 16th April 2006 or 16/04/06