As Ramadan is based on the lunar calendar and the sighting of the moon, the exact dates for the Ramadan calendar for 2022 will not be confirmed until the evening before the beginning of the new month, depending on the sighting of the moon.

Due to the phases of the moon in the lunar calendar, each lunar year is roughly ten days shorter than the usual calendar we look at. This means Ramadan moves approximately ten days earlier each year, and the month does not have fixed dates. This is why over time, Ramadan falls across different seasons, and the length of the daily fasts change depending on the number of daylight hours.