It's based on the Major Forex Sessions and this is usually where Key Swing Points occur.
It has a lookback of 20 days for Performance reasons.
- Time can be modified
- Lines width can be modified
- Lines colours can be modified
By default the Killzones will be based on NY Time using the following order
- London Open: 02:00 to 05:00
- New York Open: 07:00 to 10:00
- London Close: 10:00 to 12:00
Notice that anything prior to 08/11/2021 will have incorrect hours.
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.