The indicator shows on a chart High and Low levels over the specified time interval, which is set as hours and minutes of the period beginning and end.

The indicator shows two zones: "period" and "area". When the price is in the period zone, the values of the High and Low levels are recalculated.

The indicator allows setting:

• the hour and minute of the beginning of the "period" zone
• the hour and minute of the end of the "period" zone
• the hour and minute of the end of the "area"
  The "area" zone begins right after the end of the "period" zone

It has five input parameters:

• "Period" Hour begin - the hour of the beginning of the period zone
• "Period" Minutes begin - the minute of the beginning of the period zone
• "Period" Hour end - the hour of the end of the period zone
• "Period" Minutes end - the minute of the end of the period zone
• "Area" Hour end - the hour of the end of the area zone
• "Area" Minutes end - the minute of the end of the area zone

Fig.1. "Period" from 00:00 to 05:00, "Area" to 23:00 on the H1 chart

Fig.2. "Period" from 00:00 to 05:00, "Area" to 23:00 on the M15 chart