pyrfu.pyrf.datetime642ttns module# pyrfu.pyrf.datetime642ttns.datetime642ttns(time)[source]# Converts datetime64 in ns units to epoch_tt2000 (nanoseconds since J2000). Parameters: time (ndarray) – Times in datetime64 format. Returns: time_ttns – Times in epoch_tt2000 format (nanoseconds since J2000). Return type: ndarray