Real Trading Hours - Vertical Lines - Mark RTH for Futures

12/Jan/2021 09:15 AM[Tuesday] AUTHOR: Brandon Gum
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Updated script to plot vertical lines for open and close of futures.

Not sure why the 8:30 and 15:00 times had to be used over 9:30 or 16:00
Only plots for products of type futures. - Could be easily expanded to work with cryptos as well if you wanted.
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