In the Zoroastrian calendar, the day dedicated to the sun is Khorshed.
Khorshed, also written Khorshed or Xwarshēd, is the Middle Persian name connected with the radiant sun. Zoroastrian calendars assign each day of the month to a divinity or sacred concept, ensuring that these beings and principles are invoked regularly in worship. The corresponding Avestan solar divinity is Hvare-khshaeta, meaning “Radiant Sun.”
Khorshed is not the same as Mihr or Mithra. Mithra is associated with covenants, justice, and watchfulness and has his own day and month dedication. Mah is the moon, while Tir is linked with Tishtrya, the star Sirius and bringer of rain. These similar-sounding calendar names are a common source of quiz mistakes.
The Khorshed Yasht is a Zoroastrian hymn dedicated to the sun. It is especially associated with the eleventh day of the month in modern calendar naming, although the broader calendar tradition also preserves older Avestan forms and regional variations.