message: fixed - now getting latest data for past time rather than get 30s stale there too
diff: @@ -421,7 +421,10 @@ func parseTimeMinusBuffer(param string, r *http.Request) (*time.Time, error) {
  return nil, fmt.Errorf("%s param is not in correct timestamp format", param)
  }
  + timeUnixNow := time.Now().UnixNano()
  + if timeUnix > timeUnixNow-30000000000 {
  timeUnix = timeUnix - 30000000000
  + }
  timeFmt := time.Unix(0, timeUnix)
  