Known:

The speed of light is: 299792458 m/s.

The return year of 1 is: 365 days, 5 hours, 48 minutes and 45.9747 seconds = 3 15525.9747 seconds.

1 light year = 2999458× 31556925.9747 = 9438+026m.

1 Ami = 0.0000000000000 1m。

And:

9460528404879358.8 126÷0.00000000000000000 1

=94605284048793588 1260000000000000

Therefore, the advancing rates of Lightyear and Ami are:

1 light year ≈ 94605284048793581260000000000 Amy.

With the scientific counting method, the result is deliberately written as follows:

1 light-year ≈ 9.026× 10 33 Ami. 46636.86666666666