kaalshodh^™

लोकानामन्तकृत् कालः कालोऽन्यः कलनात्मकः ।
स द्विधा स्थूलसूक्ष्मत्वान्मूर्तश्चामूर्त उच्यते॥

"Time is the destroyer of the worlds; but there is another Time which is of the nature of calculation. This calculable time is of two types: Gross (measurable) and Minute (immeasurable)."

— Surya Siddhanta 1.10

वेदा हि यज्ञार्थमभिप्रवृत्ता कालानुपूर्व्या विहिताश्च यज्ञाः ।
तस्मादिदं कालविधानशास्त्रं यो ज्योतिषं वेद स वेद यज्ञान्॥

"The Vedas have been revealed for the performance of sacrifices, and these sacrifices depend upon the correct sequence of time. Therefore, one who knows this science of time — Jyotisha — truly understands the sacrifices."

— Rigveda Jyotisha, Verse 36

द्वादशारं नहि तज्जराय वर्वर्ति चक्रं परि द्यामृतस्य ।
आ पुत्रा अग्ने मिथुनासो अत्र सप्त शतानि विंशतिश्च तस्थुः॥

"The twelve-spoked wheel of Time revolves around the heavens and never ages. Oh Agni, upon this wheel stand 720 children in pairs."

— Rig Veda 1.164.11