That date is three days before the "Clasico" between Barca and Real Madrid which could go a long way to deciding this season's La Liga title.
Messi, five-times world player of the year, was found guilty by a Barcelona court last July on three counts of tax fraud between 2007 and 2009, resulting in a suspended 21-month prison sentence and fine of 2 million euros.
Messi's father Jorge was given the same sentence and ordered to pay a fine of 1.5 million euros.
Spanish law is such that any sentence under two years for a non-violent crime rarely requires a defendant without previous convictions to serve jail time.
Read the full article on eurosport.co.uk: Date set for Messi appeal against tax fraud sentence