Nthawi
Nthawi ndi chitukuko chopitirirabe cha moyo ndi zochitika zomwe zikuchitika mosakanikirana zosasinthika kuyambira kale mpaka pakadali pano. Nthawi ndi chiwerengero cha zigawo zosiyana siyana zomwe zimagwiritsidwa ntchito poyendera zochitika, kuyerekezera nthawi ya zochitika kapena kusiyana pakati pa iwo, ndi kuchepetsa kuchuluka kwa kuchuluka kwa zowonongeka m'zinthu zakuthupi kapena muzochitika zodziwa. Nthaŵi zambiri imatchedwa gawo lachinayi, pamodzi ndi miyeso itatu. Kwa nthawi yaitali, phunziro ndi lofunika kwambiri pa phunziro lachipembedzo, filosofi, ndi sayansi, koma kufotokoza izo mwa njira yomwe ikugwiritsidwa ntchito kuzinthu zonse popanda kuzungulira kwakhala katswiri wophunzira nthawi zonse. Komabe, malo osiyanasiyana monga bizinesi, mafakitale, masewera, masayansi, ndi masewera olimbitsa thupi onse amaphatikizapo nthawi yowonjezeramo.

Chiwerengero cha nthawi ndi mbiri
Kawirikawiri, njira zamakono, kapena nthawi yopangira nthawi, zimatenga mitundu iwiri yosiyana: kalendala, chida cha masamu chokonzekera nthawi yambiri, ndi nthawi, mawonekedwe enieni omwe amatha nthawi. Mu moyo wa tsiku ndi tsiku, koloko imafunsidwa kwa nthawi zosakwana tsiku koma kalendala imakambidwa kwa nthawi yaitali kuposa tsiku. Zambiri zamagetsi zimagwiritsa ntchito makalendala ndi maola nthawi imodzi. Chiwerengero (monga pa kujambula kwa ola limodzi kapena kalendala) chomwe chimasonyeza kuchitika kwa chochitika chodziwikiratu monga ora kapena tsiku limapezedwa mwa kuwerengera kuchokera ku nthawi yachinsinsi - malo otsogolera.

Nthawi wa Ulendo
Main: Nthawi wa Ulendo
Kuyenda nthawi ndikutembenukira kumbuyo kapena kupita kumalo osiyanasiyana panthawi, mofanana ndi kusuntha kudutsa mlengalenga, komanso mosiyana ndi "nthawi" yoyamba yomwe ikuyang'ana padziko lapansi. Malingaliro awa, mfundo zonse mu nthawi (kuphatikizapo nthawi zamtsogolo) "zimapitiriza" mwanjira ina. Ulendo wa nthawi wakhala chida chokonzekera muzinthu zakale kuyambira mu 1900. Kubwerera mmbuyo mu nthawi sikunayambe yatsimikiziridwa, kumakhala ndi mavuto ambiri osokonezeka, ndipo mwina sikutheka. Chipangizo chirichonse cha zamakono, kaya cholondola kapena cholingalira, chimene chimagwiritsidwa ntchito pokwaniritsa ulendo wa nthawi chimadziwika ngati makina a nthawi.

Vuto lalikulu ndi nthawi yopita kumbuyo ndi kuphwanya malamulo; Zingakhale zotsatila pazomwe zimayambitsa, zikhoza kuchititsa kuti pakhale kuthekera kwa nyengo. Ena amatanthauzira nthawi kuyenda amayendetsa izi mwa kuvomereza kuthekera koyenda pakati pa mfundo za nthambi, zenizeni zofanana, kapena maiko onse.

Njira ina yothetsera vuto la zochitika zapakati pazaka zapitazi ndikuti zizindikiro zoterezi sizingawoneke chifukwa sizinayambe. Monga momwe tawonetsera m'nkhani zambiri zongopeka, ufulu wodzisankhira mwina umatha kukhalapo kale kapena zotsatira za zisankho zoterezi zakonzedweratu. Choncho, sizingatheke kuti agogo aakazi agwiritsidwe ntchito chifukwa chakuti ndi agogo anu omwe sanaphedwe mwana wawo asanabadwe (kholo lanu). Lingaliro limeneli sikutanthauza chabe kuti mbiri yakale ndi yosasinthika, koma kuti kusintha kulikonse komwe munthu wopanga ulendo wongoganiza angakhale nako kudzakhala kochitika kale, zomwe zimapangitsa kuti munthu ayende. Kufotokozera zambiri pazifukwazi kungapezeke mwachindunji cha Novikov.

Nthawi ya tsiku
 World Clock
 U.S. Naval Observatory
 Nthawi mu  Hexadecimal numeral system

Zolemba
Philosophy