This year, Ramadan, the Muslim month of fasting, will be from March 10 to April 8. During this month, Muslims fast from food and drink from sunrise to sunset.
Ramadan can be both a difficult and a good time for ministry. You will have to take into account that some Muslims will be sleepy or still asleep even until noon and change your visiting times accordingly.
Building bridges of friendship is key to sharing your heart. I would also challenge you to study what the Bible says about fasting and be ready to enter into a discussion of what true fasting could look like.