Asian & London Session High/Low

This Pine Script v6 indicator plots the high and low of the Asian and London trading sessions on the chart before the New York session opens.

Asian session is defined from 00:00 to 08:00 (Europe/Sofia time).

London session is defined from 09:00 to 16:30 (Europe/Sofia time).

The session highs and lows are tracked live and updated as new candles form within the session time ranges.

At 16:30, when the New York session opens, all high/low values are reset to na to prepare for the next day.

Horizontal lines are plotted using plot.style_linebr to extend the lines until the next candle.

This tool helps traders identify key support/resistance zones formed during the most active pre-New York hours.