The North Indian Lunar Hindu Calendar has earmarked Yashoda Jayanti on a specific date of the Phalgun month. This is on Krishna Paksha Shasthi. On the other hand, certain states like those of Maharashtra and Gujarat whereas some of the states down south follow Yashoda Jayanti as per Amanta Lunar Calendar which occurs in the month of Magha instead of Phalgun.
Maa Yashoda Jayanti | Mata Yashoda Jayanti