In Jainism, there is no scriptural basis for directly associating each day of the week with a specific Tirthankara in the same systematic way as found in some Hindu traditions (where days are linked to deities). However, some Jain communities have developed devotional practices where certain days are popularly associated with the worship of particular Tirthankaras or Jain deities, but these associations are largely regional or based on tradition rather than canonical Jain texts.

A commonly found association in some Jain communities is as follows:

1. Sunday: Rishabhanatha (Adinath, 1st Tirthankara)
2. Monday: Ajitanatha (2nd Tirthankara)
3. Tuesday: Sambhavanatha (3rd Tirthankara)
4. Wednesday: Abhinandananatha (4th Tirthankara)
5. Thursday: Sumatinatha (5th Tirthankara)
6. Friday: Padmaprabha (6th Tirthankara)
7. Saturday: Suparshvanatha (7th Tirthankara)

Please note:

• This is a popular tradition in some sects and regions, not a scripturally mandated practice in Jainism.
• The most widely revered Tirthankaras in daily life and temple worship are Rishabhanatha (Adinath), Parshvanatha (23rd), and Mahavira (24th).
• Jainism emphasizes devotion and right conduct over ritualistic observances tied to specific days.

If you have a specific tradition, sect, or region in mind, please specify, as local customs may vary.