Ib nrab teev hauv tub rog yog dab tsi?
Ib nrab teev hauv tub rog yog dab tsi?

Video: Ib nrab teev hauv tub rog yog dab tsi?

Video: Ib nrab teev hauv tub rog yog dab tsi?
Video: Xwm Kab Yog Dab Tsi?: Hmoob Nkag Siab Yuam Kev Tag Lawm 2024, Kaum ib hlis
Anonim

Tsis tu ncua sij hawm siv tus lej 1 txog 12 los txheeb xyuas txhua tus ntawm 24 teev hauv ib hnub. Hauv lub sijhawm ua tub rog , cov teev yog suav txij 00 txog 23. Nyob rau hauv no system, ib tag hmo yog 00, 1 teev sawv ntxov yog 01, 1 teev tsaus ntuj. yog 13, e. Tsis tu ncua thiab sij hawm ua tub rog qhia feeb thiab vib nas this raws nraim tib txoj kev.

Tsis tas li ntawd, lub sijhawm ua tub rog yog 12 30 AM?

Koj yuav nyob ntawm no kom tau txais cov lus teb ceev, ces koj yuav tsum paub qhov ntawd 12 : 30 teev sawv ntxov ua tub rog yog 0030 lub sijhawm ua tub rog thiab 12 : 30 PM yog sib npaug rau 1230 lub sijhawm ua tub rog.

Ib tug kuj yuav nug, pes tsawg feeb nyob rau hauv ib teev nyob rau hauv tub rog? Hloov teev thiab feeb mus rau lub sijhawm ua tub rog Yog li, qhov ntawd yog 20/60 = 0.33 tub rog feeb + 8 teev = 8.33 ntawm koj daim ntawv them nyiaj. Piv txwv 2: Yog hais tias lub sij hawm txheem yog 3:46 PM thiab koj xav hloov nws mus rau lub sij hawm ua tub rog, koj ntxiv-up 12 teev ua ntej, thiab tom qab ntawd koj faib cov feeb los ntawm 60.

Tsuas yog li ntawd, koj hais li cas 0015 hauv lub sijhawm ua tub rog?

Tub Rog Sijhawm 0015 yog: 12:15 AM siv 12-teev teev teev, 00:15 siv 24-teev teev teev.

Kuv yuav hloov lub sij hawm ua tub rog li cas?

Rau hloov tub rog (24 teev) sij hawm mus rau 12 teev… Rau ib sij hawm ua tub rog uas loj dua 12:00, tsuas yog rho tawm 12 teev kom tau 24 teev (tus qauv sij hawm ), ces ntxiv "pm". Piv txwv li, yog tias koj muaj 14:30 teev, rho tawm 12 teev thiab qhov tshwm sim yog 2:30 teev tsaus ntuj. Yog tias lub sijhawm ua tub rog tsawg dua los yog sib npaug li 12:00, tsuas yog ntxiv "am".

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