Shiva Purana · Verses 7.8-2

ṛṣaya ūcuḥ
kena mānena kālesminnāyussaṃkhyā prakalpyate

saṃkhyārūpasya kālasya kaḥ punaḥ paramo 'vadhiḥ

vāyuruvāca
āyuṣo 'tra nimeṣākhyamādyamānaṃ pracakṣate

saṃkhyārūpasya kālasya śāṃttvatītakalāvadhi

akṣipakṣmaparikṣepo nimeṣaḥ parikalpitaḥ

tādṛśānāṃ nimeṣāṇāṃ kāṣṭhā daśa ca pañca ca

kāṣṭhāṃstriṃśatkalā nāma kalāṃstriṃśanmuhūrtakaḥ

muhūrtānāmapi triṃśadahorātraṃ pracakṣate

triṃśatsaṃkhyairahorātrairmāsaḥ pakṣadvayātmakaḥ

jñeyaṃ pitryamahorātraṃ māsaḥ kṛṣṇasitātmakaḥ

māsaistairayanaṃ ṣaḍbhirvarṣaṃ dve cāyanaṃ matam

laukikenaiva mānena abdo yo mānuṣaḥ smṛtaḥ

etaddivyamahorātramiti śāstrasya niścayaḥ

dakṣiṇaṃ cāyanaṃ rātristathodagayanaṃ dinam

māsastriṃśadahorātrairdivyo mānuṣavatsmṛtaḥ

saṃvatsaro 'pi devānāṃ māsairdvādaśabhistathā

trīṇi varṣaśatānyeva ṣaṣṭivarṣayutānyapi

divyassaṃvatsaro jñeyo mānuṣeṇa prakīrtitaḥ

divyenaiva pramāṇena yugasaṃkhyā pravartate

catvāri bhārate varṣe yugāni kavayo viduḥ

pūrvaṃ kṛtayugaṃ nāma tatastretā vidhīyate

dvāparaṃ ca kaliścaiva yugānyetāni kṛtsnaśaḥ

catvāri tu sahasrāṇi varṣāṇāṃ tatkṛtaṃ yugam

tasya tāvacchatīsaṃdhyā saṃdhyāṃśaśca tathāvidhaḥ

itareṣu sasaṃdhyeṣu sasaṃdhyāṃśeṣu ca triṣu

ekāpāyena vartaṃte sahasrāṇi śatāni ca

etaddvādaśasāhasraṃ sādhikaṃ ca caturyugam

caturyugasahasraṃ yatsaṃkalpa iti kathyate

caturyugaikasaptatyā manoraṃtaramucyate

kalpe caturdaśaikasminmanūnāṃ parivṛttayaḥ

etena kramayogena kalpamanvaṃtarāṇi ca

saprajāni vyatītāni śataśo 'tha sahasraśaḥ

ajñeyatvācca sarveṣāmasaṃkhyeyatayā punaḥ

śakyo naivānupūrvyādvai teṣāṃ vaktuṃ suvistaraḥ

kalpo nāma divā prokto brahmaṇo 'vyaktajanmanaḥ

kalpānāṃ vai sahasraṃ ca brāhmaṃ varṣamihocyate

varṣāṇāmaṣṭasāhasraṃ yacca tadbrahmaṇo yugam

savanaṃ yugasāhasraṃ brahmaṇaḥ padmajanmanaḥ

savanānāṃ sahasraṃ ca triguṇaṃ trivṛtaṃ tathā

kalpyate sakalaḥ kālo brahmaṇaḥ parameṣṭhinaḥ

tasya vai divase yāṃti caturdaśa puraṃdarāḥ

śatāni māse catvāri viṃśatyā sahitāni ca

abde pañca sahasrāṇi catvāriṃśadyutāni ca

catvāriṃśatsahasrāṇi pañca lakṣāṇi cāyuṣi

brahmā viṣṇordine caiko viṣṇū rudradine tathā

īśvarasya dine rudrassadākhyasya tatheśvaraḥ

sākṣācchivasya tatsaṃkhyastathā so 'pi sadāśivaḥ

catvāriṃśatsahasrāṇi pañcalakṣāṇi cāyuṣi

tasminsākṣācchivenaiṣa kālātmā sampravartate // ७.१,८.२६*

yattatsṛṣṭessamākhyātaṃ kālāntaramiha dvijāḥ // ७.१,८.२६*

etatkālāntaraṃ jñeyamaharvai pārameśvaram // ७.१,८.२६*

rātriśca tāvatī jñeyā parameśasya kṛtsnaśaḥ // ७.१,८.२६*

ahastasya tu yā sṛṣṭī rātriśca pralayaḥ smṛtaḥ

aharna vidyate tasya na rātririti dhārayet

eṣopacāraḥ kriyate lokānāṃ hitakāmyayā

prajāḥ prajānāṃ patayo mūrtayaśca surāsurāḥ

indriyāṇīndriyārthāśca mahābhūtāni pañca ca

tanmātrāṇyatha bhūtādirbuddhiśca saha daivataḥ

ahastiṣṭhaṃti sarvāṇi pārameśasya dhīmataḥ

aharaṃte pralīyante rātryante viśvasaṃbhavaḥ

yo viśvātmā karmakālasvabhāvādyarthe śaktiryasya nollaṃghanīyā

yasyaivājñādhīnametatsamastaṃ namastasmai mahate śaṃkarāya

iti śrīśivamahāpurāṇe saptamyāṃ vāyavīyasaṃhitāyāṃ pūrvabhāge kālaprabhāve tridevāyurvarṇanaṃ nāmāṣṭamo 'dhyāyaḥ