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Convert day to second (sidereal)
Please provide values below to Convert day to second (sidereal), or vice versa.
What is a Day?
The Day is traditionally defined as the time it takes the Earth to complete one full rotation relative to the sun—roughly 24 hours. It is a fundamental time unit for civil use, calendars, and daily routines across all cultures.
What is a Sidereal Second?
A Sidereal Second is 1/60th of a sidereal minute. It’s slightly shorter than a solar second and used in specialized astronomical calculations.
day to second (sidereal) Conversion Table
| day | second (sidereal) |
|---|---|
| 0.01 day | 866.365559004 second (sidereal) |
| 0.1 day | 8663.65559004 second (sidereal) |
| 1 day | 86636.5559004 second (sidereal) |
| 2 day | 173273.111801 second (sidereal) |
| 3 day | 259909.667701 second (sidereal) |
| 5 day | 433182.779502 second (sidereal) |
| 10 day | 866365.559004 second (sidereal) |
| 20 day | 1732731.11801 second (sidereal) |
| 50 day | 4331827.79502 second (sidereal) |
| 100 day | 8663655.59004 second (sidereal) |
| 1000 day | 86636555.9004 second (sidereal) |
How to Convert day to second (sidereal)
1 day = 86636.555900365 second (sidereal)
1 second (sidereal) = 1.1542471761574E-5 day
Example: convert 15 day to second (sidereal):
15 × 86636.555900365 = 1299548.3385055 second (sidereal)