CC Madhya 15.36
utthāna-dvādaśī yātrā dekhilā sakali
Śrī Caitanya Mahāprabhu and His devotees participated in all the festivals, including Rāsa-yātrā, Dīpāvalī and Utthāna-dvādaśī.
The Dīpāvalī festival takes place on the dark-moon night in the month of Kārttika (October-November). The Rāsa-yātrā, or rāsa dancing of Kṛṣṇa, takes place on the full-moon night of the same month. Utthāna-dvādaśī takes place the day after Ekādaśī in the waxing fortnight of the moon in the same month. All the devotees of Śrī Caitanya Mahāprabhu participated in all these festivals.