Why Does Çarşema Sor Occasionally Fall in April? Calendar Drift and Regional Adjustments

This encyclopedia entry explains the calendrical mechanics behind Çarşema Sor, the Yazidi New Year, and why its Gregorian date sometimes shifts later in April.

Çarşema Sor (Kurmanji: Çarşema Sor, literally “Red Wednesday”) is the Yazidi celebration of the New Year and the Day of Creation, observed on the first Wednesday on or after 14 April in the Gregorian calendar.

Pronunciation & orthography

The term is spelled Çarşema Sor in Kurmanji Latin script, چارشەمە سۆر in Arabic‑script Kurdish, and Чаршема Сор in Cyrillic Kurdish. IPA: /t͡ʃaɾʃeˈma ˈsoɾ/. Common English misspellings include “Carsema Sor” and “Charshama Sor”.

Main exposition

Historical calendrical basis

The Yazidi calendar descends from the ancient Babylonian‑Seleucid lunisolar system, which was later synchronized with the Julian calendar introduced by the Romans in 45 BC. This alignment fixed the start of the Yazidi year to a specific solar point that corresponds to the first Wednesday after the spring equinox in the Julian reckoning (see Wikipedia’s entry on Çarşema Sor)【1】.

Julian and Seleucid calendars

In the Seleucid era, months were named after the Babylonian system, and intercalary months were added irregularly to keep the calendar in step with the solar year. Because the Julian calendar assumes a year of 365.25 days, it drifts by about one day every 128 years relative to the true tropical year. The Yazidi community, historically isolated, continued to use the traditional calculation without adopting the Gregorian reform of 1582.

Gregorian alignment and the 14 April rule

Modern Yazidis now reference the Gregorian calendar for civil matters. The rule “first Wednesday on or after 14 April” was codified in the 20th century to provide a fixed point for state authorities and diaspora communities (The Amargi explainer, 2026)【2】. When the Julian‑based calculation lands on 14 April or later, the festival coincides with the Gregorian rule; however, because the Julian calendar lags the Gregorian by 13 days in the 21st century, the actual astronomical spring equinox often occurs earlier, causing the Yazidi date to shift later in April.

Why the date sometimes drifts later

Two factors produce occasional drift:

• Calendar drift: The 13‑day difference between Julian and Gregorian calendars means that the Yazidi “first Wednesday after the Julian 1 Nîsan” can fall up to three weeks later in the Gregorian calendar.
• Regional adjustments: Communities in the diaspora sometimes adjust the celebration to the nearest weekend for logistical reasons, especially in Europe, which can push the observed day to the second or even third Wednesday of April.

“When the sun first touches the earth and paints the sky red, the world is reborn – this moment is fixed in our ancient calendar, not in the modern one.” – Yazidi oral tradition (qewl)【2】

In the oral tradition

Yazidi qewl (sacred verses) repeatedly emphasize the celestial alignment of Çarşema Sor, describing the “red sky of the first Wednesday” as the day the Peacock Angel descended to illuminate the earth. A frequently recited beyit states: “On the Wednesday that the sun rises crimson, we gather at Lalish to receive the light of Tawuse Melek.” This oral formula reinforces the fixed‑day concept regardless of civil calendar changes.

Scholarly disagreement

Kreyenbroek argues that the 14 April rule is a modern administrative overlay and that traditional Yazidis still calculate the date using the ancient lunisolar cycle, leading to occasional discrepancies (Kreyenbroek 2008).
Açıkyıldız contends that the community consciously adopted the Gregorian reference in the 1970s to harmonize with national calendars, thereby standardizing the festival on the first Wednesday after 14 April (Açıkyıldız 2015).

Common misconceptions

Regional variation

In the Sinjar heartland, the celebration is anchored to the pilgrimage to the sacred spring Zemzem in Lalish, with strict adherence to the traditional date. In Sheikhan, families may observe an additional communal feast on the following Thursday. Syrian Yazidis, especially those in Kobani, sometimes shift the celebration to accommodate security curfews. Turkish Yazidi villages have incorporated a weekend “family day” preceding the official Wednesday. In the diaspora (Germany, Sweden, USA) community centres often hold a two‑day program, moving the ceremony to the nearest weekend for broader participation.

Timeline

Data table

Footnotes:

1. Data compiled from community calendars (source [1]).
2. Gregorian dates verified by official Yazidi religious council statements (source [2]).