Indian man: Śrīla Prabhupāda, regarding karma. One does his job every day, and if he spends some time in the evening chanting Lord Kṛṣṇa, do you approve this?
Prabhupāda: Oh, yes. Why not? Svalpam apy asya dharmasya trāyate mahato bhayāt. If you think of Kṛṣṇa once, that will not go in vain. That is recorded. Svalpam apy asya dharmasya trāyate mahato bhayāt. Just like Ajāmila. At the last stage of his life he chanted "Nārāyaṇa" and became liberated. So something is, about Kṛṣṇa, is very good. And you'll get chance to increase. If you believe that by chanting Hare Kṛṣṇa you'll be liberated, then why fifteen minutes? Why not fifteen hours? What is the loss there? If you chant Hare Kṛṣṇa, Hare Kṛṣṇa, what is the loss? Is there any loss? Then? Why fifteen minutes? Chant. Kīrtanīyaḥ sadā hariḥ (CC Adi 17.31). As long as you can. Now chant Hare Kṛṣṇa.