80
Śrīmad-Bhāgavatam
[Canto 6, Ch. 8]
PURPORT
According to Vedic astronomical calculations, day and night are each divided into thirty  ghaṭikās  (twenty-four minutes), instead of twelve hours. Generally, each day and each night is divided into six parts consisting of five  ghaṭikās . In each of these six portions of the day and night, the Lord may be addressed for protection according to different names. Lord Keśava, the proprietor of the holy place of Mathurā, is the Lord of the first portion of the day, and Govinda, the Lord of Vṛndāvana, is the master of the second portion.
TEXT 21
देवोऽपराह्ने मधुहोग्रधन्वा 
सायं त्रिधामावतु माधवो माम् । 
दोषे हृषीकेश उतार्धरात्रे 
निशीय एकोऽवतु पद्मनामः ॥२१॥
devo 'parāhṇe madhu-hogradhanvā  
 sāyam tri-dhāmāvatu mādhavo mām  
 doṣe hṛṣikeśa utārdha-rātre  
 niśītha eko 'vatu padmanābhaḥ
devaḥ —the Lord;  aparāhṇe —in the fifth part of the day;  madhu-hā —named Madhusūdana;  ugra-dhanvā —bearing the very fearful bow known as Śārṅga;  sāyam —the sixth part of the day;  tri-dhāmā —manifesting as the three deities Brahmā, Viṣṇu and Maheśvara;  avatu —may He protect;  mādhavaḥ —named Mādhava;  mām —me;  doṣe —during the first portion of the night;  hṛṣikeśaḥ —Lord Hṛṣikeśa;  uta —also;  ardha-rātre —during the second part of the night;  niśīthe —during the third part of the night;  ekaḥ —alone;  avatu —may He protect;  padmanābhaḥ —Lord Padmanābha.
TRANSLATION
May Lord Madhusūdana, who carries a bow very fearful for the demons, protect me during the fifth part of the day. In the eve-