Starting date: 30th January 2003 is Thursday
Target date: 2nd March 2003
Days remaining in January after 30th:
31st January = 1 day
Days in February 2003:
2003 is not a leap year (not divisible by 4)
February 2003 has 28 days
Days in March up to 2nd:
1st March and 2nd March = 2 days
Total number of days from 30th January to 2nd March:
=1+28+2
=31 days
31 days =4 weeks +3 days
=28+3 days
After 4 complete weeks (28 days), the day remains Thursday.
Adding 3 more days:
Thursday +1 day = Friday
Friday +1 day = Saturday
Saturday +1 day = Sunday
Therefore, 2nd March 2003 was Sunday.