What is the cheapest day to buy Amtrak tickets?

Basically “Tuesday” is the cheapest day to buy tickets on Amtrak trains +𝟏-𝟖𝟔𝟔→𝟖𝟐𝟗→𝟏𝟎𝟎𝟓 .And other cheapest days to buy Amtrak tickets are Wednesday and Saturdays +1-800-211-5032.These days are considered to be the cheapest to buy AmtrakTICKET