We know that today is the day today. Yesterday is the day before today. Tomorrow is the day after today.
The days of the week are given below.
According to the question, it was a Tuesday yesterday.
We know today is the day after yesterday.
Hence, today will be the day after Tuesday.
Let us locate Tuesday in the list of days and try to find out the day after Tuesday.
So, if it was Tuesday yesterday, then today is Wednesday.