Are there some days were funerals are not allowed by the Church?

A Funeral Mass can be celebrated any day except on Holy Days of Obligation, Holy Thursday, Good Friday, Holy Saturday, Easter and the Sundays of the Advent, Lent and Easter seasons. On these prohibited days, the funeral liturgy outside of Mass, without the distribution of communion, is permitted followed by the Rite of Committal.  In this circumstance, a Memorial Mass for the deceased may be celebrated later at the convenience of the family and local parish.