Help me build a python gui preferably using tkinter

I'm trying to build a gui for displaying menu items the gui should have a front page with 4 buttons: view today's store, view other dates, check operating hours, and exit each of the first 3 buttons should open up a new frame within the same window each frame should have a back button to navigate between frames view today's store header should be current system time that gets updated every second should consist of buttons that displays the name of stores in operation at the current time, name of stores can be retrieved via Stores_In_Operation() function in [login to view URL] each button should open up a new frame within the same window when clicked the new frame should display the menu of the store, which can be retrieved via Return_Store_Menu(store_name,date_of_interest) in [login to view URL] date_of_interest is the form of 'dd mm yyyy hh mm' eg. '23 10 2020 10 00' below the menu should be a user input box to fill in number of people in queue, with a 'confirm' button clicking 'confirm' should display the estimated waiting time. estimated waiting time should be calculated via Queue_Time(store_name,number_of_people) in [login to view URL] view other dates should display a calendar which allows the user to choose any date should provide option for user to input any time should have button to confirm input clicking 'confirm' will bring the user to a similar frame as "view today's store", except the contents displayed are now of user input date and time estimated waiting time should not be there either check operating hours label which says 'click store names for more information' displays all stores names followed by opening hours for the current system day individual store's opening hours can be retrieved via Return_Store_Hours(store_name,day_of_interest,period_of_interest='Opening Hours') in [login to view URL] day_of_interest should be eg.'Monday', 'Tuesday', etc. depending on what the current day is clicking the store names should display a new frame with displays opening hours of that store for all days in the following format -> day : opening hours clicking on 'day : opening hours' should bring up a bargraph of the average human traffic for that particular day for that store this can be retrieved via Barplot(store_name,date_of_interest) in [login to view URL] date_of_interest is the form of 'dd mm yyyy hh mm' eg. '23 10 2020 10 00'