Share New Research 
Hi all!
I compared the data between the “Trade” chart and the chart in TV, and I noticed that the time of the 5min bar isn't same.
QC backtest result -- Trade
TradeView
The time is offset by 5 minutes.
I'm confused about it.
QC backtest result -- TradeTradeView
Leo Kamgar
Hi Renjie,
There is no issue here, although at first glance it seems as though there is a delay, there is in fact no delay. This is because TradingView implements a forward-facing bar consolidation syntax such that, when implementing the 5 minute bar resolution, the bar labeled (8:55) reflects the data that is spanning (8:55-9:00). The timestamp marks the beginning of the time period for the trade bar data. On the other hand, QuantConnect utilizes a backward-facing bar consolidation syntax, such that the bar corresponding to the same time period (8:55-9:00) is actually labeled as the end time (9:00).
It is standardized for charting software to use the forward-facing bar consolidation syntax, however, because QuantConnect (QC) is a platform with a different goal, it makes it easier to have backward-facing instead. This is because QC is utilizing the LEAN Engine, which utilizes a ‘Time Frontier’ structure (visible here), with the goal of removing Look-Ahead bias when performing a backtest.
Hope this helps
The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.
To unlock posting to the community forums please complete at least 30% of Boot Camp.
You can continue your Boot Camp training progress from the terminal. We hope to see you in the community soon!