Time converter
Sidereal Days to Days Converter
Convert sidereal days to mean solar days for astronomy and orbital mechanics.
From
To
Result
1 sidereal d = 0.99727 d
Also equals
86,164.09s
1,436.068167min
23.934469h
0.99727d
0.142467wk
0.00273yr
Conversion formula
d = sidereal d × 0.99726961 sidereal day equals 0.99726956 d.
Sidereal Day to Day table
| Sidereal Day (sidereal d) | Day (d) |
|---|---|
| 0.01 | 0.01 |
| 0.1 | 0.0997 |
| 1 | 0.9973 |
| 2 | 1.9945 |
| 3 | 2.9918 |
| 5 | 4.9863 |
| 10 | 9.9727 |
| 20 | 19.9454 |
| 50 | 49.8635 |
| 100 | 99.727 |
| 1,000 | 997.2696 |
About this conversion
This converter uses the displayed definition for sidereal day and its recognized relationship to day. Calculations retain full precision internally, and only the visible result is rounded. You can swap the conversion direction without changing the underlying standard.
Convert Sidereal Day to other time units
Sidereal Day to NanosecondSidereal Day to MicrosecondSidereal Day to MillisecondSidereal Day to SecondSidereal Day to MinuteSidereal Day to HourSidereal Day to DaySidereal Day to WeekSidereal Day to FortnightSidereal Day to MonthSidereal Day to QuarterSidereal Day to YearSidereal Day to DecadeSidereal Day to CenturySidereal Day to MillenniumSidereal Day to Julian Year
Frequently asked questions
How is Sidereal Day defined here?+
Sidereal Day is treated as 86,164.09 seconds. The displayed definition is used consistently in both directions.
Does the converter keep full precision?+
Yes. Calculations retain high precision throughout each step, while the visible result is rounded for readability.
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