Does the 240 day start from the end of my visa or end of my I94?

Hi Anil

What is the rule for the 15 day clock for premium processing?
My 15 day clock began on 4th of March and on 6th of March it stopped as I got an RFE.
Now my 15 day clock has again started with my RFE response on 23rd March.
So when are my 15 calendar days getting over?

Also does the 240 day start from the end of my visa or end of my I94?

240 day start from the end of I94

240 day clock starts from the day your i94 expires. H1B visa stamp expiry date does not matter.

H1B premium processing RFE response Clock Start date

H1B premium processing clock is re-started on the day USCIS receives your RFE response.

So the 3 days which were spent before I got an RFE will count in those 15 days?

Can you send me a link of USCIS or DHS page which specifies the same information on the 240 day rule?

Thanks for all your help.

I clearly mentioned in my earlier response that Premium clock RE-STARTS again counting from 1 on the day the RFE response is received by USCIS.

I have covered the H1B 240 day rule here if you want to read.