Direct conversion
Convert second [s] to sidereal day [sidereal day] instantly with formula, examples, chart, and FAQs.
1 second [s] = 0.000012 sidereal day [sidereal day]
1 second [s] = 0.000012 sidereal day [sidereal day]
Example: 1 second [s] equals 0.000012 sidereal day [sidereal day].
Time conversions use second as the reference unit. Calendar-style values such as average month and average Gregorian year are approximate by definition.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
The second is the SI base unit of time.
HistoryThe second moved from astronomical definitions to an atomic definition for high precision.
Current useSeconds are used in science, sports timing, computing, navigation, media, and everyday clocks.
The sidereal day (sidereal day) is a time unit used to express measurements in this converter.
HistoryThis unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current useUse sidereal day when comparing time values, checking specifications, converting between systems, or preparing quick estimates.
| second [s] | sidereal day [sidereal day] |
|---|---|
| 1 | 0.000012 |
| 2 | 0.000023 |
| 5 | 0.000058 |
| 10 | 0.000116 |
| 20 | 0.000232 |
| 25 | 0.00029 |
| 50 | 0.00058 |
| 100 | 0.001161 |
| 1000 | 0.011606 |
Use this formula: 1 second [s] = 0.000012 sidereal day [sidereal day] Enter your value in the calculator and the result updates instantly.
1 second [s] equals 0.000012 sidereal day [sidereal day].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.