![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/The_Magma_-_21st_Century_Watch_Design.jpg/640px-The_Magma_-_21st_Century_Watch_Design.jpg&w=640&q=50)
Saa
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Saa ni kipimo cha wakati. Si kipimo cha SI kamili kama ilivyo sekunde lakini ni kawaida kote duniani pia katika matumizi ya kisayansi.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/The_Magma_-_21st_Century_Watch_Design.jpg/640px-The_Magma_-_21st_Century_Watch_Design.jpg)
Saa inagawiwa kwa dakika 60 na sekundi 3,600. Siku ina takriban masaa 24.