How long does using ‘save low’ gas fees take

I looked on https://www.etherchain.org/tools/gasPriceOracleEth that's sourced from EthGasStation and sent a transaction using the 'save low' price of 9 GWei that said would take <30 minutes to go through. I only did it because I thought the price was just low and would go back up soon. I only sent about 0.015 eth so it doesn't suck too much if I lose it. Is it completely hopeless it will get picked up and it was just like a glitch in eth gas station or will it just take a very long time to go through?