https://help.cbp.gov/s/article/Article-1730?language=en_US (mirror) mentions:
It is common for individuals to submit a FOIA request to receive travel history records when applying for U.S. citizenship (N-400 Application for Naturalization Form (mirror)).
That sounds like a great idea. I'd to submit an online FOIA request to see the log of my entry/exit. What's the processing time of such FOIA requests?
I'm not looking for an exact timeframe but rather whether we're talking about hours, days, weeks or months. The idea is obtaining the information in time for the N400 while having as much history as possible.
Motivation: The information in the FOIA is more comprehensive than the information obtained via the I-94 website travel history. See What is the difference between "Information Regarding Entry and Exit" and "travel history" for the U.S. Customs and Border Protection?