London First 15m Candle (Real-Time NY)

London First 15-Minute Candle (Real-Time New York Time)

This custom TradingView indicator identifies and tracks the first 15-minute candle of the London session, but calculated in real-time according to New York time (EST/EDT).

🔹 What the Indicator Does
1. Detects the London Session Open (Real NY Time)

You define the London session start time in New York hours (default: 3:00 AM NY Time).

The indicator monitors the first 15 minutes from the defined start time (3:00–3:15 NY time).

Only today’s candle is tracked — historical London ranges are not shown.

2. Builds the London Opening Range Candle (15m)

While the 15-minute window is still open, it continuously tracks:

Highest price reached (London High)

Lowest price reached (London Low)

The values update in real time only within the 3:00–3:15 window.

At 3:15 NY time, the candle is locked in and no longer changes.

3. Draws Three Persistent Levels on the Chart

Once the London candle closes, the indicator plots:

🔴 Top Line (London High)

Extended to the right across the chart.

🟢 Bottom Line (London Low)

Extended to the right across the chart.

⚪ Mid Line (Middle of the Range)

Computed as:

(londonHigh + londonLow) / 2


Also extended to the right.

All lines:

Are only drawn for today.

Auto-delete and refresh when a new trading day begins.

4. Works on ANY Timeframe

Even if the indicator runs on:

1m

2m

5m

1h

etc.

…it still uses a real 15-minute aggregation, ensuring the London candle is accurate.

5. Clean Chart — No Historical London Levels

The script:

Removes old lines at the start of each new day.

Keeps only today’s active London range.

This prevents clutter and ensures clarity.

6. Optional Alerts (if enabled)

The indicator can generate alerts when the market crosses:

The top of the London range

The bottom of the London range

The midline

For example:

Price breaks above London High

Price breaks below London Low

Price crosses the Midline up or down

These can be used for:

Breakout strategies

Liquidity grabs

Range-trading confirmations

7. Fully Customizable

User inputs allow you to modify:

London session start hour (NY Time)

Candle duration (fixed at 15 minutes)

Line colors:

High line color

Low line color

Midline color

Line widths

Summary

This indicator gives you a clean and accurate view of the first 15-minute candle of the London session — critical for many ICT/SMS/prop firm strategies — with:

Real-time NY-based calculation

Automatic cleanup

Clear range lines

Custom colors

Alerts for breakouts