For learning Cantonese language it is necessary to know alphabets in Cantonese. You have to know alphabets in Cantonese to learn writing in Cantonese language. Cantonese alphabets are the building blocks of Cantonese language. There are 28 characters in Cantonese alphabets. Cantonese alphabets are made up of Cantonese vowels and Cantonese consonants. The Cantonese alphabets contain 8 vowels and 20 consonants. Cantonese vs German gives a comparison between Cantonese and German alphabets.
Cantonese script is also known as Cantonese writing system or Cantonese orthography. The set of visible signs used to represent units of Cantonese language in a systematic way is called Cantonese Script. The Cantonese language uses Chinese Characters and derivatives i.e. Cantonese alphabets are derived from Chinese Characters and derivatives script. The script decides the writing direction of the any language, hence the writing direction of Cantonese is Left-To-Right Horizontal and Top-To-Bottom. Learn Cantonese Greetings where you will find some interesting phrases.
Is Cantonese hard to learn? The answer to this question is that it depends on one's native language. One should start learning Cantonese language with Cantonese alphabets and Cantonese phonology.
Time taken to learn any language that is mentioned here is the approximate time required to learn specific language for the person who is proficient in English. You can also go through all Indian Languages and find if Cantonese is one of the language of India.