Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 34

Sanskrit:

एवं सर्वा निशा याता एकेव रमतो व्रजे ।रामस्याक्षिप्तचित्तस्य माधुर्यैर्व्रजयोषिताम् ॥ ३४ ॥

ITRANS:

evaṁ sarvā niśā yātāekeva ramato vrajerāmasyākṣipta-cittasyamādhuryair vraja-yoṣitām

Translation:

Thus for Lord Balarāma all the nights passed like a single night as He enjoyed in Vraja, His mind enchanted by the exquisite charm and beauty of Vraja’s young ladies.

Purport:

Lord Balarāma was enchanted by the charming pastimes of the beautiful young ladies of Vraja. Thus each night was a completely new experience, and all the nights passed as if they were a single night.