Why Do I Keep Losing Track of Time?

Losing track of time - https://thenaturalhealthdictionary.com

I have several issues but the main one that I do not have answers to is; why I keep losing track of time?
It occurs in periods like for example in January I cannot remember what I’ve learned in school, the conversations I’ve had and sometimes I forget what I’ve done in a 24h period. And the next month I’m fine.