How long does your EBM last in a room temperature

currently i do not freeze my EBM and just keep it in the chiller as it is much faster to use it. the longest EBM kept in the refrigerator is 2-3 days. usually i let it be under a room temperature around 1hr and warm it up a bit. the question is how long does your EBM last at a room temperature if it does not finish after the 1st feeding? i treat the EBM like a fresh milk around 4-5 hours and feed my bby whenever she wants. the max i could go is 6 hours. Today i test the EBM and it is still taste sweet even after 8 hours, some people said that i can only use it 1-2 hour max and dump the remaining EBM. my baby doesnt seems to hve any problem with the EBM tht i gave but im just curious if im doing the right thing.