Fasting is a holy act of prayer and sacrifice for the sake of Allah and your sins will be forgiven by Allah. During the holy month of Ramadan, an Islam must abstain from food, drinks, life pleasures, intercourse, smoking and other sins. Islam must abstain from food and drinks before the break of the dawn till sunset. During Ramadan month, every sane and able Muslim should fast. In addition, for getting eligibility for fasting he or she must attain the age of puberty and maturity.
Fasting should start by taking the sahri. Sahri is the food or drink you take in anticipation of the next day’s fasting. So you must take sahri before the Subah Sadiq. If you missed the sahri, you must skip fasting for the day.
As soon as the sun set in the evening, you must break the fast by having dates and water. You should break the fasting before the Magrib prayers.