Sessions On Chart With 3 EMAs

This Indicator script provides two major features:

1. Session Indicators: Highlighting the active trading sessions with color-coded backgrounds for better visual tracking of market hours.

2. Exponential Moving Averages: Displaying three EMAs with different periods to help identify trends and potential entry/exit points.

Session Time Settings:
Each trading session has configurable time inputs that let users adjust session start and end times according to their preferred trading hours or market times. This can be customized directly from the input section for more flexibility.

This part of the script visually highlights the different trading sessions (London, New York, Tokyo, Sydney) by coloring the background of the chart based on which session is currently active. This is useful for traders who want to see at a glance when each major market session is open.

Session Definitions:

London Session: Active from 03:00 to 12:00 UTC.
New York Session: Active from 08:00 to 17:00 UTC.
Tokyo Session: Active from 20:00 to 04:00 UTC.
Sydney Session: Active from 17:00 to 02:00 UTC.

Background Colors:

When the London session is active, the background is colored green.
When the New York session is active, the background is colored red.
When the Tokyo session is active, the background is colored yellow.
When the Sydney session is active, the background is colored blue.

EMA Length Settings:
Users can change the length of the EMAs via the len1, len2, and len3 inputs to adjust the sensitivity of each moving average, depending on the user's trading style.

EMA Lengths:

EMA 1 (Blue Line): A short-term EMA with a length of 9 periods, which reacts quickly to price changes.
EMA 2 (Orange Line): A medium-term EMA with a length of 21 periods, providing a balance between short-term and long-term price movements.
EMA 3 (Purple Line): A long-term EMA with a length of 50 periods, smoothing out more of the price data to show long-term trends.

Together, these features provide a comprehensive view of both time-based market activity and trend-following analysis, making this script a valuable tool for traders.