Surya Siddhanta
विकलानाम् कला षष्ट्या तत्षष्ट्या भाग उच्यते। तत्त्रिम्शता भवेद् राशिर् भगणो द्वादशैव ते ॥
Sixty Vikalás (seconds) make a Kalá (a minute) and sixty minutes constitute an Ansá (a degree.). A Rásí (a sign) consists of thirty degrees and just twelve Rásís (signs) make a Bhagaṇa (revolution.)
english translation
vikalAnAm kalA SaSTyA tatSaSTyA bhAga ucyate। tattrimzatA bhaved rAzir bhagaNo dvAdazaiva te ॥
hk transliteration by Sanscript