# atomic unit of time to day (sidereal) conversion

Conversion number between atomic unit of time [au] and day (sidereal) [d (sidereal)] is 2.8072997830151 × 10-22. This means, that atomic unit of time is smaller unit than day (sidereal).

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Switch to reverse conversion:
from day (sidereal) to atomic unit of time conversion

### Enter the number in atomic unit of time:

Decimal Fraction Exponential Expression
 [au]
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 atomic unit of time = (2.418884326509*10^-17) / (86164.09053083288) = 2.8072997830151 × 10-22 day (sidereal)
• 1 day (sidereal) = (86164.09053083288) / (2.418884326509*10^-17) = 3.5621418348345 × 10+21 atomic unit of time
• ? atomic unit of time × (2.418884326509*10^-17  ("s"/"atomic unit of time")) / (86164.09053083288  ("s"/"day (sidereal)")) = ? day (sidereal)

### High precision conversion

If conversion between atomic unit of time to second and second to day (sidereal) is exactly definied, high precision conversion from atomic unit of time 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!

### atomic unit of time to day (sidereal) conversion chart

 Start value: [atomic unit of time] Step size [atomic unit of time] How many lines? (max 100)

visual:
atomic unit of timeday (sidereal)
00
102.8072997830151 × 10-21
205.6145995660302 × 10-21
308.4218993490453 × 10-21
401.122919913206 × 10-20
501.4036498915075 × 10-20
601.6843798698091 × 10-20
701.9651098481106 × 10-20
802.2458398264121 × 10-20
902.5265698047136 × 10-20
1002.8072997830151 × 10-20
1103.0880297613166 × 10-20
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## Multiple conversion

Enter numbers in atomic unit of time and click convert button.
One number per line.

Converted numbers in day (sidereal):
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## Details about atomic unit of time and day (sidereal) units:

Convert Atomic unit of time to other unit:

### atomic unit of time

Definition of atomic unit of time unit: ≡ a0/(α·c). This is the smallest meaningful time unit under which an electron takes a circle on the first Bohr pitch divided by 2π.

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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