Displaying the date incorrectly?

Question

Python

Hello everyone, I don’t understand why it gives the wrong date?

def day(user_id):
    markup = types.InlineKeyboardMarkup(row_width=1)
    d = datetime.now()
    now_day_1 = d - timedelta(days=d.weekday())
    dates = [(now_day_1 + timedelta(days=d)).strftime("%m/%d/%Y") for d in range(7)]
    days = ["Понедельник", "Вторник", "Среда", "Четверг", "Пятница", "Суббота", "Восскресенье"]
    my_days = days[d.weekday() + 1:]
    my_days1 = dates[d.weekday() + 1:]
    days_month = calendar.monthrange(d.year, d.month)[1]
    if len(my_days) > (days_month - d.day):
        my_days = my_days[:days_month - d.day]
    if len(my_days1) > (days_month - d.day):
        my_days1 = my_days1[:days_month - d.day]
    for j in my_days1:
        for i in my_days:
            markup.add(types.InlineKeyboardButton(text=i+j, callback_data=j))
        return markup

Answer 1

I think adding information to the buttons you will do yourself)

import time
def day():
    month_week = {
        'Jan': '01',
        'Feb': '02',
        'Mar': '03',
        'Apr': '04',
        'May': '05',
        'Jun': '06',
        'Jul': '07',
        'Aug': '08',
        'Sep': '09',
        'Oct': '10',
        'Nov': '11',
        'Dec': '12',
        'Mon': 'Понедельник',
        'Tue': 'Вторник',
        'Wed': 'Среда',
        'Thu': 'Четверг',
        'Fri': 'Пятница',
        'Sat': 'Суббота',
        'Sun': 'Воскресенье'
    }
    time_now = time.time()
    i, month_end = 0, None
    for x in range(0, 31+1):
        date = str(time.ctime(time_now+i)).split()
        week, month, day, year = month_week[f"{date[0]}"], month_week[f"{date[1]}"], date[2], date[4]
        #День недели, месяц, день, год
        if month_end is None:
            month_end = month
        if month == month_end:
            print(f'{week} - {day}/{month}/{year}')
            i += 86400
day()

Answer 2

Maybe you should take return out of the loop?
In general, you would be engaged in the normal naming of variables, otherwise it is impossible to read this.
You may also need to do this
text=i+' ' + j