The base SI unit of time. Originally defined as 1/86,400 of a mean solar day, it has been defined since 1967 by the frequency of the hyperfine transition of cesium-133 atoms (9,192,631,770 cycles = 1 second). Universally used and a core time unit in China’s legal metrology system, essential for science, communications, and navigation in all high-precision timing applications.
The base SI unit of time. Originally defined as 1/86,400 of a mean solar day, it has been defined since 1967 by the frequency of the hyperfine transition of cesium-133 atoms (9,192,631,770 cycles = 1 second). Universally used and a core time unit in China’s legal metrology system, essential for science, communications, and navigation in all high-precision timing applications.
| second [s] | year [year] |
|---|---|
| 1 s | 3.168808781402895e-8 year |
| 2 s | 6.33761756280579e-8 year |
| 3 s | 9.506426344208685e-8 year |
| 4 s | 1.267523512561158e-7 year |
| 5 s | 1.5844043907014474e-7 year |
| 10 s | 3.168808781402895e-7 year |
| 20 s | 6.33761756280579e-7 year |
| 30 s | 9.506426344208685e-7 year |
| second [s] | year [year] |
|---|---|
| 40 s | 0.000001267523512561158 year |
| 50 s | 0.0000015844043907014475 year |
| 100 s | 0.000003168808781402895 year |
| 200 s | 0.00000633761756280579 year |
| 300 s | 0.000009506426344208684 year |
| 400 s | 0.00001267523512561158 year |
| 500 s | 0.000015844043907014474 year |
| 1000 s | 0.00003168808781402895 year |