I think she means to reassure me.
Me: Did you go potty? Mira: Yeah! Me: When? Mira (very happy and loud): At two firty seven! This time the number actually sounded like a time, but often it's something like "Sixteen fifty two!" Which is a time when you're referring to the 24-hour clock, but I don't think she's that smart. It's probably not a fair question to ask a 2.5-year-old. Like I expect her to have a record of her potty breaks or something. Another frequent conversation is the following: Me: Let's go potty! Mira: I already did yesterday!