On what days do Cantonese people worship God and Buddha?

The first day or fifteen! However, as long as you sincerely and wholeheartedly worship Buddha, every day is an auspicious day to worship Buddha, and it will always be an auspicious time to burn incense! Of course, in addition to going to the temple to burn incense, you can also download incense burning software with your mobile phone, such as the sacred method of Ji Xing wishing and inviting Guanyin Bodhisattva. You can carry it with you, burn incense at any time, make a wish at any time, and bless at any time!