title: how to convert open time into real time?
body: <p>[
  [
  1499040000000,      // Open time
  &quot;0.01634790&quot;,       // Open
  &quot;0.80000000&quot;,       // High
  &quot;0.01575800&quot;,       // Low
  &quot;0.01577100&quot;,       // Close
  &quot;148976.11427815&quot;,  // Volume
  1499644799999,      // Close time
  &quot;2434.19055334&quot;,    // Quote asset volume
  308,                // Number of trades
  &quot;1756.87402397&quot;,    // Taker buy base asset volume
  &quot;28.46694368&quot;,      // Taker buy quote asset volume
  &quot;17928899.62484339&quot; // Ignore.
  ]
  ]</p>