Why Does Ramadan’s Date Change Each Year?

The holy month of Ramadan is one of the most spiritually significant and rewarding times of the Islamic calendar. With a focus on connecting closer to Allah (SWT) through increased acts of worship, Muslims all over the world dedicate themselves to Islam for the entire month. It is a time made for spiritual renewal, connecting believers closer to Allah (SWT) and creating a fresh start with their faith to continue their dedication throughout the year. Muslims should spend their time reciting the Quran, increasing prayers, giving to charity and other acts of worship to purify their hearts and souls. As well as this, the month requires all able Muslims to fast, which is one of the five pillars, to build self-control and put themselves in the shoes of those less fortunate. This means between sunrise and sunset, believers must refrain from eating and drinking and use this time for useful spiritual connection.

Ramadan is a very important time and is something every Muslim looks forward to. This is because immersing themselves in acts of worship doesn’t just strengthen their faith, but it also earns them immense rewards, particularly in the last ten days (Laylat al-Qadr). As the month is a spiritually significant time, it’s important for every Muslim to know when Ramadan starts and everything about the month to observe it correctly and adhere to Islamic rules. One confusing question for many that’s important to know is why does Ramadan change every year? Each year, the date of when Ramadan starts changes, meaning it occurs in every season in the Gregorian calendar. This change can be confusing, but it’s vital to understand why the changes happen to observe the month at the right time every year.

Ramadan in the Lunar Calendar

So, why does Ramadan’s date change every year? The reason is due to the Islamic calendar following the lunar cycle rather than the solar cycle, as the Gregorian calendar does. This means that the length of each month differs slightly from the months in the Gregorian calendar, which is typically used in more Western countries. Gregorian months have 30 or 31 days within them, while the lunar calendar has around 29 to 30 days in each month.

Because of this, each Islamic month, including Ramadan, shifts every year. The start and end dates of every month will occur on a different day and month in the Gregorian calendar as the years go on. This change is only subtle each year as it makes each month of the Islamic calendar 10 or 11 days earlier from the previous year in the Gregorian calendar.

The Difference Between the Solar and Lunar Calendar Cycles

Another key part of why does the date of Ramadan change every year is understanding what makes the solar and lunar calendar cycles different from each other. The Gregorian calendar cycle takes 365 days to create a full year, while the lunar calendar only takes 354 days to create a full lunar year. This is another reason why the shift to 10-11 days earlier for the start of Ramadan occurs every year, since there are significantly fewer days in a lunar year than a Gregorian one.

The shorter length of days in a lunar year is what also makes Ramadan occur in every season as the years go on. The holy month can happen in the summer, autumn, winter and spring as it moves earlier every year.

How the Sighting of the Moon Affects the Beginning of the Month

The sighting of the new moon also plays a part in why does the Ramadan date change every year. Not only does the lunar calendar determine the start of the holy month, but so does the new moon sighting. This means that any month of the Islamic calendar does not begin until the physical sighting of the new crescent moon. Ramadan is the main month when the sighting of the moon is eagerly anticipated and won’t begin until the crescent moon is sighted, as stated by the Prophet Muhammad (peace be upon him):

“Start fasting on seeing the crescent (of Ramadan), and give up fasting on seeing the crescent (of Shawwal), and if the sky is overcast (and you cannot see it), complete thirty days of Sha’ban” [Sahih al-Bukhari – 1909]

As the start of Ramadan is determined by the sighting of the crescent moon, this means that the month begins at different times across the world. It all depends on where you are located and when the moon is sighted for your region, as well as how your region sights the moon or if the sky is clear or cloudy at the time of the new moon. Some countries rely on physically seeing the moon as confirmation to begin the month of Ramadan, while others use neighbouring regions. It all depends on your geographical location because the moon is sighted differently around the world and the time of year it is expected to occur in. If the sky is cloudy or there are bad weather conditions in your region, then Ramadan can be delayed. However, many countries that can’t see the moon or have difficulties with it follow Saudi Arabia to determine when Ramadan begins. So, it’s best to check how your region looks for the moon sighting for an accurate start date to begin the month of spiritual dedication.

Why Does the Ramadan Time Change Every Year?

When it comes to the question, “Why does the Ramadan time change every year?”, many wonder how the month occurs in every season in the Gregorian calendar. This time change through seasons occurs due to the date moving earlier each year by around 10 or 11 days. Over time, this subtle time change moves into different months every year, which then starts to trickle into different season as years pass by.

As each year passes and the date gets earlier from the previous year in the Gregorian calendar, Ramadan slowly occurs in every season. It takes 33 years for Ramadan to complete a full seasonal cycle, occurring throughout winter, spring, summer and autumn. This means that Muslims undergo fasting and spiritual dedication in every season at some point in their lives.

How the Change Affects Muslims Worldwide

The yearly change in when Ramadan happens during the Gregorian calendar affects Muslims all over the world in numerous ways.

Different Fasting Times

A huge affect on Muslims is the fasting times throughout the month. Since the holy month shifts earlier each year, which eventually leads to it occurring in every season, it means the daylight hours when a believer must fast changes every year. This is a slight change, which slowly grows longer as time goes on. In the UK, during the winter, Muslims have a shorter fasting period until they can break the fast, while in the summer, there’s much longer fasting periods. This is because the sun sets earlier in the winter and later in the summer, so the Iftar meal to break the fast will occur at different times each year. The Suhoor meal time also slightly changes during the month of Ramadan as the sun rises either earlier or later each day.

Change in Climates

Alongside the fasting period changing every year for Muslims, there is also climates to deal with when observing Ramadan. If the fast is in the winter in the UK, Muslims have a much shorter fasting time, which is easier, but they face cold dark days that can make it difficult to focus on acts of worship. Winter can also affect prayer schedules due to the clocks going back, so believers need to be prepared. However, in the summer, Muslims have longer fasting periods that can be a challenge combined with hot weather. Fasting can be very difficult in the summer months due to the heat and takes a lot of self-restraint.

Two Ramadans in One Year

There is also a rare phenomenon that can happen in the lunar calendar due to the dates changing for the start of Ramadan. This is when two Ramadans fall in the same Gregorian year due to the month starting earlier each year. The last time there was two Ramadans in a year was in 1997 and the next one is expected to be in 2030 in January and December. This means Muslims worldwide need to be prepared to take on two months of spiritual devotion in one year.

Now you know the answer to the popular question, “Why does the date of Ramadan change every year?”, you can be prepared for the month of devotion properly and know exactly when to expect the holy month every year. This means that you can focus on what truly matters, strengthening your faith and connection to Allah (SWT).

For Ramadan 2026, which is expected to begin on the evening of 17th February, make sure to fulfil your obligation by giving to those in desperate need. Ramadan is a deeply rewarding time for acts of charity and can earn you immense rewards, as well as save vulnerable people’s lives. At Orphans in Need, we provide orphans and widows urgent aid to help them survive and have a brighter future. We supply basic necessities, such as food, water, educational supplies and clothes, to the most vulnerable communities across the world. Donate to our appeals during Ramadan and help save the lives of countless orphans and widows.