Modify existing Indicator and add time dynamically and then check each candle pips movement

Hi everyone,

What I want is got to do with time. I have the rectangle box time code which I found it online.

What I actually want is that the box should open whatever the London Time 1PM is and box to close whatever the London Time 5PM is. It shouldn't matter what broker time is.What should matter is whatever the time in London is and it should open and close box as per exactly the same time as London time. This should also apply for daylight saving when the London times goes an hour backward and an hour forward each year and so on. Please make sure it works in the backtest also.

Please see the code I've attached of the rectangle box file. Please hide the periodBegin, PeriodEnd etc., I don't need that. The functionality you will add which will automatically set the box to open whatever the London Time 1PM is and close at London Time 5PM should do the job regardless of what broker time is instead of I having to figure out what the broker time is and what the time in London is and having to figure out the difference and enter the time manually.

Once done, please return the mql file and I'll have a look at it.