It depends upon which year for which you are asking. Memorial day is always on the last Monday in May, which means it changes year to year rather than having the same set date every year.
FROM ONE OF JEHOVAH'S WITNESSES... Not to sure what you are asking here but here is some thing for you to have a read of.The memorial is celebrated around the Jewish passover time, we Celebrate the...
You can't say "At the Weekend", it's not proper english. You can say "on the weekend" if you mean, for example, "we can't go to Disneyland today, but maybe on the weekend we can."