If 4 March 1993 is a Thursday, what will be the day of the week on 12 November 2004?

From 4 March 1993 to 4 March 2004 there are 11 years, including the leap days of 1996, 2000, and 2004:

$11\times365+3=4018$ days.

Since 4018 is exactly divisible by 7, 4 March 2004 is also a Thursday.

From 4 March 2004 to 12 November 2004 is 253 days, and

$253\equiv1\pmod7$.

One day after Thursday is Friday.