Geometriya
Time

Calendar to trading days: where a calendar cycle lands on the chart

Cycles are often counted in calendar days, but a chart only has trading days. Cal→Trade counts the calendar days between two swings and re-lays that count as trading days, so the projected line lands beyond the swing: a future turn date worked out in advance.

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Geometriya chart of TCS with a Cal→Trade line: the calendar-day count from the July low re-laid as trading days, landing as a dashed vertical line.
Cal→Trade on TCS (daily): the calendar-day count from the reference low, re-laid in trading days.

Why the conversion matters

Between two swings a month apart there may be 30 calendar days but only about 21 trading sessions. Counting the calendar days again as sessions pushes the projection forward past weekends and holidays, which is where calendar-based cycles tend to show up on a trading chart.

Placing it

  1. 1Open Cal→Trade from the Time group in Overlays.
  2. 2Click a reference swing point, then each later swing point you want measured. Every one fires its own projected line.
  3. 3Or press ⚡ to place it automatically on recent swings, and ◀ to step back to earlier ones.

Reading it

Each line is a date to watch, not a direction. Several lines from different swings clustering near one date, or a line meeting a price level from another tool, is the reading worth attention.

Questions

Does it account for exchange holidays?

The projection counts the bars on the chart itself, and the chart only has bars for sessions the exchange was open, so holidays are skipped by construction.

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