How long after I get my advance should I be expecting my other half

The IRS says 9 out of 10 filers who efile and choose direct deposit will get their refunds within 21 days. That still leaves a considerable number of people who do not. Some returns take longer for additional processing due to specific items in the return. Some are pulled at random for more thorough investigation.

Starting about 24 hours after you return is accepted, you can start monitoring the status of your refund using this IRS website tool:
https://www.irs.gov/Refunds

NOTE: When using that tool, use only the Federal refund amount, and not any total refund amount that includes a state refund.
The amount to use is on your Federal Form 1040, Line 21a.

NOTE:   Even though you may be able to efile now, by law the IRS will not issue a refund on tax returns claiming the Earned Income Tax Credit or Additional Child Tax Credit until February 15 at the earliest.