Śrīmad-Bhāgavatam 9.14.27
తే ఉపేత్య మహారాత్రే తమసి ప్రత్యుపస్థితే ।
ఉర్వశ్యా ఉరణౌ జహ్రుర్న్యస్తౌ రాజని జాయయా ॥ ౨౭ ॥
te upetya mahā-rātre
[te upetya mahaa-raatre]
tamasi pratyupasthite
[tamasi pratyupasthite]
urvaśyā uraṇau jahrur
[urvashyaa uranau jahrur]
nyastau rājani jāyayā
[nyastau raajani jaayayaa]
Word-for-word
te
—
they, the Gandharvas
upetya
—
coming there
mahā-rātre
—
in the dead of night
tamasi
—
when the darkness
pratyupasthite
—
appeared
urvaśyā
—
by Urvaśī
uraṇau
—
two lambs
jahruḥ
—
stole
nyastau
—
given in charge
rājani
—
unto the King
jāyayā
—
by his wife, Urvaśī.
Blended reading (Sanskrit + English inline)
te upetya mahā-rātre
te
they, the Gandharvas
upetya
coming there
mahā-rātre
in the dead of night
tamasi pratyupasthite
tamasi
when the darkness
pratyupasthite
appeared
urvaśyā uraṇau jahrur
urvaśyā
by Urvaśī
uraṇau
two lambs
jahruḥ
stole
nyastau rājani jāyayā
nyastau
given in charge
rājani
unto the King
jāyayā
by his wife, Urvaśī.
Thus the Gandharvas came to earth, and at midnight, when everything was dark, they appeared in the house of Purūravā and stole the two lambs entrusted to the King by his wife, Urvaśī.
Purport
“The dead of night” refers to midnight. The mahā-niśā is described in this smṛti-mantra: mahā-niśā dve ghaṭike rātrer madhyama-yāmayoḥ, “Twelve o’clock midnight is called the dead of night.”
— A.C. Bhaktivedanta Swami Prabhupāda
Gauḍīya Ācāryas
Viśvanātha Cakravartī Ṭhākura
Gauḍīya
Translation
Thus the Gandharvas came to earth, and in the darkness of midnight they appeared in the house of Purūravā and stole the two lambs entrusted to the King by his wife, Urvaśī.
Mahāṛātre means “at midnight.” According smṛti, midnight means the ghaṭikas in the middle of the two yāmas of the night.
My note
Source: vedabase.io