Timeline for Maul goes like this:The official timeline has it at exactly 30 years between A Phantom Menace and his death on Tattooine. (unless the wiki is lying to me)
32 BBY - Maul kills Qui-Gon, gets sliced by Obi-Wan
20 BBY - Maul returns during the Clone Wars
19 BBY - 3 BBY - Creates Crimson Dawn and rules the criminal underworld, eventually goes to Malachor and is stranded there
3 BBY - Escapes from Malachor
2 BBY - Dies in Tatooine against Obi-Wan