Other contributors have said "What day of the week was mothers day on in 1988?" is the same question as "What day of the week was Mother's Day on in 1988?" If you believe that these are not asking the same thing and should be answered differently, click here
Mother's Day, at least in the US, is always on a Sunday. Additional info:The date was Sunday, May 12, 1968.For Mother's Day dates around the world, see the Wikipedia link.To calculate things like...