In 
Sam Witwer and Athena Portillo | Star Wars Celebration LIVE! 2025 on the official Star Wars YouTube channel (backup link) Sam Witwer said that Star Wars: Maul - Shadow Lord will take place one year after the end of the Clone Wars, which Star Wars: Timelines dates to 19 BBY. Therefore, the series must take place in 18 BBY.
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{{ShadowLordDate}}