Ramadan is the sacred month in Islamic calendar in which Muslims abstain from eating and drinking during the day.
However, you must have noticed that Ramadan, the ninth month of the Islamic calendar, occurs at a different time each year. This is because the Islamic calendar (354 or 355-day long) is based on the lunar cycle, which is roughly 10–12 days shorter than the solar-based Gregorian calendar. As a result, Ramadan shifts earlier annually, moving through all seasons over a roughly 33-year cycle, allowing for slight variations in the exact start date.

Due to this 11-day difference, the start date of Ramadan moves backward each year. The month officially begins with the sighting of the new crescent moon, allowing for slight variations in the exact start date.
For example, in 2024, Ramadan started in early March, while in 2030, it is expected to begin in early January.






