# month (hollow) to day (sidereal) conversion

Conversion number between month (hollow) [mo] and day (sidereal) [d (sidereal)] is 29.079399371173. This means, that month (hollow) is bigger unit than day (sidereal).

### Contents [show][hide]

Switch to reverse conversion:
from day (sidereal) to month (hollow) conversion

### Enter the number in month (hollow):

Decimal Fraction Exponential Expression
 [mo]
eg.: 10.12345 or 1.123e5

Result in day (sidereal)

?
 precision 0 1 2 3 4 5 6 7 8 9 [info] Decimal: Exponential:

### Calculation process of conversion value

• 1 month (hollow) = (2505600) / (86164.09053083288) = 29.079399371173 day (sidereal)
• 1 day (sidereal) = (86164.09053083288) / (2505600) = 0.034388605735486 month (hollow)
• ? month (hollow) × (2505600  ("s"/"month (hollow)")) / (86164.09053083288  ("s"/"day (sidereal)")) = ? day (sidereal)

### High precision conversion

If conversion between month (hollow) to second and second to day (sidereal) is exactly definied, high precision conversion from month (hollow) to day (sidereal) is enabled.

Since definition contain rounded number(s) too, there is no sense for high precision calculation, but if you want, you can enable it. Keep in mind, that converted number will be inaccurate due this rounding error!

### month (hollow) to day (sidereal) conversion chart

 Start value: [month (hollow)] Step size [month (hollow)] How many lines? (max 100)

visual:
month (hollow)day (sidereal)
00
10290.79399371173
20581.58798742346
30872.38198113519
401163.1759748469
501453.9699685587
601744.7639622704
702035.5579559821
802326.3519496938
902617.1459434056
1002907.9399371173
1103198.733930829
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## Multiple conversion

Enter numbers in month (hollow) and click convert button.
One number per line.

Converted numbers in day (sidereal):
Click to select all

## Details about month (hollow) and day (sidereal) units:

Convert Month (hollow) to other unit:

### month (hollow)

Definition of month (hollow) unit: ≡ 29 d. Hollow month = 29 days × 86400 sec.

Convert Day (sidereal) to other unit:

### day (sidereal)

Definition of day (sidereal) unit: ≈ 23 h, 56 min, 4.0916 sec. A sidereal day is the time needed for the Earth to rotate once around its axis so that the distant stars appear in the same position in the sky. This is ~4 minutes shorter than the solar day.

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