Both are clearly understood so both are acceptable.
12th of January 1993.
january 12
January 12th
January 12 1976 was a Monday.
January 12th, 1975 fell on a Sunday.
January 12th, 1986 fell on a Sunday.
Janyary 12th was on a Friday
January 12th, 1953 fell on a Monday.
Thursday, May 12th, 2011 falls 120 day after January 12th, 2011.
NIGHTFALL was the bonus puzzle on Wheel for January 12th 2011NIGHTFALL was the bonus puzzle on Wheel for January 12th 2011
Zayn Jawaad Malik was born on 12 January 1993.
12/1/93