OPEN-SOURCE SCRIPT
Monthly Trinity Box

The DCG Monthly Day Box is a precision timing tool designed to highlight a specific calendar day each month directly on your chart. Built for traders who study recurring institutional behavior, monthly cycle setups, and time-based confluence zones, this indicator draws a dynamic box spanning the full high-to-low range of your chosen target day — complete with a midline and customizable lookback window.
Inspired by the same logic as third-hour and session-based reference boxes, this tool brings that same discipline to the monthly timeframe. Identify whether the 3rd, 5th, or any key calendar day is acting as support, resistance, or a volatility expansion trigger — month after month.
**Features:**
- Toggle any calendar day (1–28) as your monthly target
- Box auto-expands across all intraday bars within that day
- Alternating colors by even/odd month for instant visual separation
- Month label displayed on each box (e.g. JUN 3, JUL 3)
- Configurable lookback in months (1–24)
- Independent color controls for box fill, border, and midline
- Midline auto-calculated from session high/low — solid, dashed, or dotted
- Extend mode to project the box to the right edge of the chart
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.