4Year 9Months counting from 485 approve date or I551 passport stamp date?

[ejb2k]

Hi can the expert here confirm which date should be used?

Thanks in advance

 

[gurdiya]

I believe you are eligible to apply 90 days before the 'Resident Since' date + 5 years on your PR Card.

 

[ocworker]

I believe you are eligible to apply 90 days before the 'Resident Since' date + 5 years on your PR Card.

For example, If the PR card shows "resident since" as 01-20-1996 vs the I-485 approval date as 01-30-1996, the I-485 approval date is the one which stands correct.

By all means, I-485 approval date should be the one as the base line, rather than the PR card, if these 2 days are different.