28 April 1958 was a Monday.
16 April 1958 was a Wednesday.
23 April 1958 was a Wednesday.
April 18, 1958, was a Friday.
April 11, 1958, was a Friday.
12 April 1958 was a Saturday.
April 19, 1958 fell on a Saturday.
April 13, 1958 fell on a Sunday.
April 2, 1958 fell on a Wednesday.
April 4, 1958 fell on a Friday.
That will depend on what day of the week the 1st of April is on. Whatever day of the week it is on, if you are taking the 8th of April as being 7 days later, then it will be on the day of the week after the day of the week of the 1st of April. So, for example, if the 1st of April was on a Saturday, then the 8th of April would be on a Sunday.
January 1st, 1958 fell on a Wednesday.