Caryl's hours today

Hi Tim, I just spoke with my mother. She told me that there was a concert this afternoon and Caryl left during the concert, before 6pm. I want to say that my mother has very diminished short term memory and it is possible that she remembers incorrectly. However, she was emphatic and certain that Caryl left during the concert and before 6. Would you please inquire whether this transpired as my mother states. Thanks. Laura