# 5.14.1.2. eqcorrscan.utils.seismo_logs.flag_time_err

`eqcorrscan.utils.seismo_logs.``flag_time_err`(phase_err, time_thresh=0.02)

  Find large time errors in list.

  Scan through a list of tuples of time stamps and phase errors and return a list of time stamps with timing errors above a threshold.

  Note

  This becomes important for networks cross-correlations, where if timing information is uncertain at one site, the relative arrival time (lag) will be incorrect, which will degrade the cross-correlation sum.

  Parameters: | phase_err (list) List of Tuple of float, datetime.datetime time_thresh (float) Threshold to declare a timing error for
  Returns: | List of `datetime.datetime` when timing is questionable.