i want t know the day of each tirtankars birth

In Jainism, the precise historical dates for the births of the 24 Tirthankaras are not fixed according to the Gregorian calendar. Instead, their births are traditionally celebrated according to the Jain lunisolar calendar, and many are associated with specific festivals or auspicious days. Here is a list of the 24 Tirthankaras with their traditional birth dates as per Jain tradition (mainly based on the Svetambara tradition, as Digambara details may vary):

1. Rishabhanatha (Adinath): Chaitra Shukla Navami (9th day of the bright half of Chaitra)
2. Ajitanatha: Magha Shukla Navami (9th day of the bright half of Magha)
3. Sambhavanatha: Chaitra Shukla Panchami (5th day of the bright half of Chaitra)
4. Abhinandananatha: Vaishakha Shukla Chaturdashi (14th day of the bright half of Vaishakha)
5. Sumatinatha: Vaishakha Shukla Navami (9th day of the bright half of Vaishakha)
6. Padmaprabha: Kartik Shukla Saptami (7th day of the bright half of Kartik)
7. Suparshvanatha: Pausha Shukla Dwadashi (12th day of the bright half of Pausha)
8. Chandraprabha: Pausha Shukla Dwadashi (12th day of the bright half of Pausha)
9. Suvidhinatha (Pushpadanta): Magha Shukla Saptami (7th day of the bright half of Magha)
10. Shitalanatha: Magha Krishna Ashtami (8th day of the dark half of Magha)
11. Shreyansanatha: Falgun Shukla Ashtami (8th day of the bright half of Falgun)
12. Vasupujya: Magha Krishna Chaturdashi (14th day of the dark half of Magha)
13. Vimalanatha: Falgun Shukla Ekadashi (11th day of the bright half of Falgun)
14. Anantanatha: Vaishakha Shukla Chaturdashi (14th day of the bright half of Vaishakha)
15. Dharmanatha: Magha Shukla Saptami (7th day of the bright half of Magha)
16. Shantinatha: Vaishakha Krishna Trayodashi (13th day of the dark half of Vaishakha)
17. Kunthunatha: Vaishakha Krishna Dwadashi (12th day of the dark half of Vaishakha)
18. Aranatha: Margashirsha Shukla Saptami (7th day of the bright half of Margashirsha)
19. Mallinatha: Vaishakha Shukla Navami (9th day of the bright half of Vaishakha)
20. Munisuvratanatha: Vaishakha Krishna Chaturdashi (14th day of the dark half of Vaishakha)
21. Naminatha: Shravan Shukla Navami (9th day of the bright half of Shravan)
22. Neminatha: Shravana Shukla Ashtami (8th day of the bright half of Shravana)
23. Parshvanatha: Pausha Krishna Dashami (10th day of the dark half of Pausha)
24. Mahavira: Chaitra Shukla Trayodashi (13th day of the bright half of Chaitra)

These dates are as per the traditional Jain calendar and may be observed differently in various regions or sects. The most widely celebrated is Mahavir Jayanti, marking the birth of Lord Mahavira.

If you want the specific Gregorian calendar dates for a given year, you would need to consult a current Jain Panchang (calendar), as these dates shift each year.