In English it's equivalent, though a little awkward. Technically there is a subtle difference in English because the word order means "tomorrow = Monday" and if you say "it is..." you haven't technically defined the antecedent, but maybe that's not a problem in Italian.
They have a different pronunciation: 'e' is a closed vowel (é - think 'a' in failure), while è is an open vowel (è - think 'e' in stress).
eredi...is the sound voice coming out the speaker, an "r" sound is in the voice...
I'm sorry but there is no way I can get Lunedi out of her pronunciation. I went for Venerdi.