class_docstr: Reader class for ICI L1B products in netCDF format.
class_docstr_tok: ["Reader","class","for","ICI","L1B","products","in","netCDF","format","."]
docstr: Get observation start time.
code: def start_time(self):
      """Get observation start time."""
      try:
          start_time = datetime.strptime(
              self["/attr/sensing_start_time_utc"],
              "%Y%m%d%H%M%S.%f",
          )
      except ValueError:
          start_time = datetime.strptime(
              self["/attr/sensing_start_time_utc"],
              "%Y-%m-%d %H:%M:%S.%f",
          )
      return start_time
  
imports: import logging
  from datetime import datetime
  from enum import Enum
  from functools import cached_property
  import dask.array
  import numpy
  import xarray
  from geotiepoints.geointerpolator import GeoInterpolator
  from satpy.readers.netcdf_utils import NetCDF4FileHandler
label_desc: Use image node_id 2 for calling the IciL1bNCFileHandler obj's underlying member method code with example usage: obj.start_time() and returns: start_time