When can I start working after H1 approval

[kls2011]

I am presently on h4 status. If I find an employer to get my H1 done, how long do I have to wait till I can start working with that employer?

If it is approved this year, do I have to wait till October 1st to start work? How about if my h1 visa is petitioned in november? Can I start working immediately or do I wait till the October of next year?

 

[ginnu]

I am presently on h4 status. If I find an employer to get my H1 done, how long do I have to wait till I can start working with that employer?
-------- if employer file H4 to H1 Change of status and H1 gets approved with H1 status based I-94 then start date may be October 1. Dont pay for H1 to employer and dont file through Desi employer who does not have real job.
If it is approved this year, do I have to wait till October 1st to start work? How about if my h1 visa is petitioned in november? Can I start working immediately or do I wait till the October of next year?

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