Khadiragrihyasutra 1.1.2

1.1.2

udagayanapūrvapakṣapuṇyāheṣu prāgāvartanādahnaḥ kālo 'nādeśe / 2

During the northern course of the sun, at the time of the increasing moon, on auspicious days, before noon: this is the time at which the constellations are lucky, unless a special statement is given.