Truly, a Liar

Logic Level 3

Jake lies a lot. He lies every day of the week except ONE particular day when he tells the truth. Here are the statements made by him on three certain consecutive days:

I lie on Mondays and Tuesdays.
Today is either Thursday or Saturday or Sunday.
I lie on Wednesdays and Fridays.

On which day of the week does he tell the truth?

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