Mowgli is walking through a forest.

He wants to know what day of the week it is.

She stops and asks a zebra and a panther.

The zebra always lies on Monday, Tuesday and Wednesday.

The panther always lies on Thursday, Friday and Saturday.

Zebra says, "Well yesterday was one of my lying days."

Mowgli can't figure it out just from the zebra's answer so he asks the panther.

The panther says "Yesterday was also one of my lying days."

What day is it?