Leetcode 1154. Day of the Year

class Solution:
    def dayOfYear(self, date: str) -> int:
        year, month, day = map(int, date.split('-'))
        months = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
        days = day
        for i in range(month):
            days += months[i]
        if month > 2 and (year % 400 == 0 or (year % 4 == 0 and year % 100 != 0)):
            days += 1
        return days