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[amibroker] Why does AmiBroker under report time intervals by 1 minute on a 15min chart?



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I am trying to understand how AmiBroker reports the time in bars. As one example, I am noticing that on a 15 minute chart, every 15 minute interval (not counting the last one, which is in progress) is reporting 1 less minute than it should be. For example right now in EST I see:

.....9:14:25,9:29:50,9:44:55

on a chart for EURUSD futures on CME. Why isn't AmiBroker reporting 9:15:xx,9:30:xx,9:45:xx ?

To say nothing of the issue of the seconds being different on each interval.

Is it safe to assume that AB is always under reporting the minutes by 1 for the given interval? In other words, can I safely parse out the minutes and add one to get the real interval? 

I also noticed that an hourly chart reports time in a weird way. It is 10:03pm EST. The last bar says 10:03pm. Fine. The prior bar says 9:29:xx, the bar prior to that 8:29:xx. Don't most charting apps use the convention of even hours? So that each bar is on an even hour interval? Isn't that pretty much standard convention or is there an option to change this in AmiBroker?

Thanks.



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