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How to correctly get H4 bar data in forex market?

Hi, I am new to quantconnect, trying to understand how does the consolidator works, what I want to achieve is to get H4 candle in forex market. 

I use `consolidator` to consolidate hourly quotebar into 4 hour bar, it start to count number of hours from 00:00:00. However, the forex market opens at Sunday 5pm EST, the correct H4 cancdle should start counting from then.

How should I set the starting time of the consolidaator? Or may be the starting time of the algo? 

Many thanks in advance! 

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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.


Hey Xiolei,

Consolidating data always begins at midnight. If there is no data available because that market is closed, the consolidator just wont update until the market opens.This solution allows you to consolidate data between 5pm Sunday and 5pm Friday (Forex Hours). You can set your consolidating period by changing the timedelta parameter in the CalenderInfo that is returned in CustomDaily.

from datetime import datetime, timedelta
class QuantumHorizontalChamber(QCAlgorithm):
def Initialize(self):
self.SetStartDate(2019, 6, 15) # Set Start Date
self.SetCash(100000) # Set Strategy Cash
self.AddForex("EURUSD", Resolution.Minute)
# Custom monthly consolidator
consolidator = QuoteBarConsolidator(self.CustomDaily)
consolidator.DataConsolidated += self.CustomDailyHandler
self.SubscriptionManager.AddConsolidator("EURUSD", consolidator)
def CustomDaily(self, dt):
'''Custom Monthly Func'''
start = (dt if dt.hour > 17 else dt - timedelta(1)).date()
start = datetime.combine(start, datetime.min.time())+timedelta(hours=17)
return CalendarInfo(start, timedelta(1))
def CustomDailyHandler(self, sender, consolidated):
'''This is our event handler Custom Daily function'''
self.Log(f"{consolidated.Time} >> CustomDailyHandler >> {consolidated.Close}")

Best,
Rahul

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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.


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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.


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