Why is Ramadan Getting Earlier Each Year? Lunar Calendar Explained

Ramadan moves 10-11 days earlier each Gregorian year because the Islamic calendar is lunar-based (354 days) while the Gregorian calendar is solar-based (365 days). This ~11-day annual difference causes all Islamic months, including Ramadan, to shift backward through the Gregorian calendar.

This is by design in Islam—the lunar calendar ensures that Ramadan rotates through all seasons over approximately 33 years. This means Muslims in every part of the world experience fasting in both short winter days and long summer days during their lifetime, sharing the varying challenges equally.

Unlike some other calendars that add “leap months” to stay aligned with seasons, the Islamic calendar maintains pure lunar months, keeping Ramadan’s timing connected to the moon’s phases rather than the sun’s position.

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Ramadan’s Shift Through the Years

Year	Ramadan Start	Season (Northern Hemisphere)
2020	April 24	Spring
2022	April 2	Spring
2024	March 11	Late Winter
2026	February 18	Winter
2028	January 28	Winter
2030	January 6	Winter
2032	December 15	Early Winter
2035	November	Fall
2040	August	Summer

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The Math Behind the Shift

Calendar	Year Length	Basis
Islamic (Hijri)	~354 days	12 lunar months
Gregorian	~365 days	Earth’s orbit around sun
Difference	~11 days	Ramadan shifts earlier

Every 33 Gregorian years ≈ 34 Islamic years

This means Ramadan completes a full cycle through all 12 Gregorian months approximately every 33 years.

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Why Doesn’t Islam Add Leap Months?

Some lunar calendars (like the Hebrew calendar) add an extra month periodically to stay aligned with seasons. Islam deliberately does not do this because:

1. Divine command: The Quran specifies 12 months in the Islamic year (9:36)
2. Equality: All Muslims experience Ramadan in every season over time
3. Lunar connection: Islamic months begin with the new moon sighting
4. Historical practice: This was the calendar used by Prophet Muhammad (peace be upon him)

The Prophet explicitly prohibited the pre-Islamic practice of adding intercalary months.

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When Will Ramadan Return to Summer?

For the Northern Hemisphere:

Approximate Year	Ramadan Season
2026-2032	Winter
2033-2038	Fall
2039-2045	Summer
2046-2052	Spring
2053-2058	Winter (cycle repeats)

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Related Questions

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Last updated: February 3, 2026