Not really
No. Even in the 1990s it took up to 3 months before HIV could be detected with the test they had back then. Now it's like within a few days.
But, I think you could have HIV hidden in reservoirs for that long and test negative. But don't take that as the gospel.
https://hivinfo.nih.gov/understanding-hiv/fact-....
According to the National Institute of Health (NIH) yes HIV can hide.
I was tested negative for HIV. About a year later I was tested positive. My CD4 was 156 i don't remem6 VL. For the first 3 months I was tested biweekly for labs. I was told then that how my VL and cd4s were going, that they estimated i had had it for 14 years, even though i was testing negative up to then.
So I believe HIV can hide in reservoirs for a long time, keep biilding up until there is no more room and it finally goes to the rest of the body.