SB 11.26.8

nāhaṁ vedābhinirmuktaḥ
 sūryo vābhyudito ’muyā
mūṣito varṣa-pūgānāṁ
 batāhāni gatāny uta
Synonyms: 
na — did not; aham — I; veda — know; abhinirmuktaḥ — having set; sūryaḥ — the sun; — or; abhyuditaḥ — risen; amuyā — by her; mūṣitaḥ — deceived; varṣa — years; pūgānām — comprising many; bata — alas; ahāni — days; gatāni — have gone; uta — certainly.
Translation: 
That lady cheated me so much that I did not even see the rising or setting of the sun. Alas, for so many years I passed my days in vain!
Purport: 

Due to attachment to the goddess, King Purūravā forgot his devotional service to the Supreme Lord and became more concerned with pleasing this beautiful young lady. Thus he later lamented, having wasted his valuable time. Those who are Kṛṣṇa conscious utilize every moment in the Lord’s loving service.