As far as I know it is the same as the rest of the world, starting with Ash Wednesday and ending Easter Sunday. Maybe what you are looking for is at catholic.com/ or ewtn.com/
I hope that helps. Maybe some one else can provide more for you.
If the OP is looking for the time within which one is obliged to receive the Eucharist [Easter Time], my old Baltimore Catechism #3 says from the First Sunday of Lent through Trinity Sunday. I think this is still valid.
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