I use it with New York Timezone.
You can easily modify the code for the time, you can also add more sessions to it.
I am no coder and have no idea why the indicator is showing all lines just under m10. I use it with and m3 most of the time.
If you know the answer, it would be so cool if you could write me to modify it and make it work in all timeframes.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.