So in other words, how is it possible that in the morning few hours I had my last day earnings from 0.165 to 0.17 a day and now during few hours afternoon I have only 0.13?? A lot of rounds were done during these hours afternoon.
if you look at blocks stats for example today morning - in 6 hrs we found only 4 blocks. We are very small ETH pool and variance is big. However as you can see there is still a lot of miners who mine with us for some reason...
That does not explain why my earnings in the morning, when you said your pool mined only 4 blocks, I had much higher earnings then now.
Checking now you see that in last 24 hrs we found 27 blocks - from these 27 blocks you got ~0.13 ETH
Just for comparison - if you were checking at 12:00 today then counting 24 hrs from then we found 30 blocks, which is > 10% more.
Now - pool hashrate is not constant - we have more power during the day (probably some nicehash/rental miners joining), so your part during the night was bigger for every block
There is no other explanation...