I feel depression and anxiety can alter your perception of time. You can lose a sense of what day on the calendar. I wonder if you have confusion with time during the day or if it limited to days and weeks into the future. I sometimes briefly forget what day of the week and what month it is, but I have a good sense of what time it is during the day. I know when I need to go to work, eat, and sleep...but have to think harder to tell you that today is May 26 and Saturday and that June begins next week.