How to calculate 180 days for I140

USA H1B Visa
1

For the 180-day rule for I-140, how does one calculate the 180 days? Which date is considered to be the start of the I140?

i140%20approval%20notice
i140 approval notice.jpg2028×1504 606 KB

Is it “Receipt date”/“Notice date”/“Priority date” as mentioned on I-140 Approval Notice?

Thank you.

2

Notice date of approval

1 Like
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Thank you @ImmiGeek.