Hello.  I am trying to map my chart/series plot data locally.  The X values in the Charts property of [algorithmid].json file don't seem to correlate straight over to a time within the start/end time bounds of my backtest.

For example, I am running a backtest for the month of July; 7/1/2022 - 7/31/2022.  In [algorithmid].json file, Charts > Strategy Equity property, the first value is {"x": 1656648000,  "y": 100000.0}.  Converting 1656648000 to Unix time millis, it is Tue Jan 20 1970 04:10:48, which isn't a time within my start/end time. The very last Strategy Equity X value, 1659128400, converts to Tue Jan 20 1970 04:52:08, so it doesn't make sense as a timespan since the start of my backtest, as the first and last values aren't even an hour apart.

How do I map these X values to a point in time within my backtest?